Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:Sure, I'll keep my windows open when it's 95 degrees outside and 100 degrees inside. No problem. Hope my principal doesn't mind me teaching in my two piece and flip flops.

OK - how many days in the school year is it 95 degrees outside? Couple weeks in September and in June? The weather here is fairly mild for most of the school year.

You can utilize the a/c *and* have the windows open 6".

Or not. If you DGAF about air quality/covid then don't open them.

6inches. That is not enough. Look, if you care about Covid you’d know it’s multiple layers of mitigation and this is just for show.

More is obviously better if the weather is nicer. But even 6” saw a large improvement in ACH.

Reposting:
https://www.washingtonpost.com/opinions/2020/08/27/want-buy-schools-time-open-windows/
“But when we opened windows, even just six inches, we consistently saw air-exchange rates above the “excellent” target of five air changes per hour, with some rooms getting much more.”

If you care about Covid you’d know it’s multiple mitigations and not just this for show. If you care you will mask and distance or do virtual.

Yes, totally agree. I’ve posted that as well.

Ventilation, masking, testing, etc. are all good & easy things we can do to reduce transmission.

And they can reduce viral load so even if you catch it your case won’t be as severe.

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:Sure, I'll keep my windows open when it's 95 degrees outside and 100 degrees inside. No problem. Hope my principal doesn't mind me teaching in my two piece and flip flops.

OK - how many days in the school year is it 95 degrees outside? Couple weeks in September and in June? The weather here is fairly mild for most of the school year.

You can utilize the a/c *and* have the windows open 6".

Or not. If you DGAF about air quality/covid then don't open them.

6inches. That is not enough. Look, if you care about Covid you’d know it’s multiple layers of mitigation and this is just for show.

More is obviously better if the weather is nicer. But even 6” saw a large improvement in ACH.

Reposting:
https://www.washingtonpost.com/opinions/2020/08/27/want-buy-schools-time-open-windows/
“But when we opened windows, even just six inches, we consistently saw air-exchange rates above the “excellent” target of five air changes per hour, with some rooms getting much more.”

If you care about Covid you’d know it’s multiple mitigations and not just this for show. If you care you will mask and distance or do virtual.

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:Sure, I'll keep my windows open when it's 95 degrees outside and 100 degrees inside. No problem. Hope my principal doesn't mind me teaching in my two piece and flip flops.

OK - how many days in the school year is it 95 degrees outside? Couple weeks in September and in June? The weather here is fairly mild for most of the school year.

You can utilize the a/c *and* have the windows open 6".

Or not. If you DGAF about air quality/covid then don't open them.

6inches. That is not enough. Look, if you care about Covid you’d know it’s multiple layers of mitigation and this is just for show.

More is obviously better if the weather is nicer. But even 6” saw a large improvement in ACH.

Reposting:
https://www.washingtonpost.com/opinions/2020/08/27/want-buy-schools-time-open-windows/
“But when we opened windows, even just six inches, we consistently saw air-exchange rates above the “excellent” target of five air changes per hour, with some rooms getting much more.”

This is really old information from 2020. Not relevant with new variants. More current stuff says different.

Link?

Ventilation is ventilation.

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:Sure, I'll keep my windows open when it's 95 degrees outside and 100 degrees inside. No problem. Hope my principal doesn't mind me teaching in my two piece and flip flops.

OK - how many days in the school year is it 95 degrees outside? Couple weeks in September and in June? The weather here is fairly mild for most of the school year.

You can utilize the a/c *and* have the windows open 6".

Or not. If you DGAF about air quality/covid then don't open them.

6inches. That is not enough. Look, if you care about Covid you’d know it’s multiple layers of mitigation and this is just for show.

More is obviously better if the weather is nicer. But even 6” saw a large improvement in ACH.

Reposting:
https://www.washingtonpost.com/opinions/2020/08/27/want-buy-schools-time-open-windows/
“But when we opened windows, even just six inches, we consistently saw air-exchange rates above the “excellent” target of five air changes per hour, with some rooms getting much more.”

This is really old information from 2020. Not relevant with new variants. More current stuff says different.

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:Sure, I'll keep my windows open when it's 95 degrees outside and 100 degrees inside. No problem. Hope my principal doesn't mind me teaching in my two piece and flip flops.

OK - how many days in the school year is it 95 degrees outside? Couple weeks in September and in June? The weather here is fairly mild for most of the school year.

You can utilize the a/c *and* have the windows open 6".

Or not. If you DGAF about air quality/covid then don't open them.

6inches. That is not enough. Look, if you care about Covid you’d know it’s multiple layers of mitigation and this is just for show.

More is obviously better if the weather is nicer. But even 6” saw a large improvement in ACH.

Reposting:
https://www.washingtonpost.com/opinions/2020/08/27/want-buy-schools-time-open-windows/
“But when we opened windows, even just six inches, we consistently saw air-exchange rates above the “excellent” target of five air changes per hour, with some rooms getting much more.”

Anonymous wrote:

Anonymous wrote:Sure, I'll keep my windows open when it's 95 degrees outside and 100 degrees inside. No problem. Hope my principal doesn't mind me teaching in my two piece and flip flops.

OK - how many days in the school year is it 95 degrees outside? Couple weeks in September and in June? The weather here is fairly mild for most of the school year.

You can utilize the a/c *and* have the windows open 6".

Or not. If you DGAF about air quality/covid then don't open them.

6inches. That is not enough. Look, if you care about Covid you’d know it’s multiple layers of mitigation and this is just for show.

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:LOL, dc moms are crazy

Really? So the kids in this area are stupid? They aren't smart? They haven't learned how covid spreads or how to keep people safe? Interesting that so many stupid people live in Montgomery County but we are supposed to have one of the best school systems. Must not be so great if parents are all so stupid.

A co2 monitor isn't going to help without many other layers in place. This is theater for attention.

Right. Other layers are in place. This is just another data point.

Jeez. People are just looking for things to complain about.

What are you talking about! There is no mitigation this school year. No masking, no distancing, no testing, no nothing. Plan to get Covid multiple times. What is the big deal, clearly you are ok with Covid?

Tests are available. Masks are available. Vaccines & boosters are available. HVAC systems have been upgraded/supplemented.

If you have concerns about a specific classroom there is no harm bringing in a CO2 monitor to verify adequate ventilation.

Available means nothing if not used. Same thing with a co2 monitor if mcps or the monitoring parent does not pay for repairs.

If MCPS can't update/modify the HVAC system to increase ventilation, then the teacher can open the window.

You’d need someone to properly study the airflow in the classroom to see if opening the windows will actually improve the air quality.

Ventilation is the best way to improve air quality.

If the ventilation is poor (high co2 levels) then opening the windows will help until they upgrade/modify HVAC system.

It depends on a number of factors actually. And it would be indefinite because it takes MCPS forever to upgrade. You really want your kids sitting in extremely hot or cold classrooms for sone marginal improvement in ventilation? 90 degrees inside while wearing their KN95?

If the co2 level is too high, then opening the windows absolutely will bring down the levels.

The weather isn’t that bad during the school year. My kid survived having the window open all last year.

I ignore anyone who talks in such absolute terms because again, it depends on a number of factors. Buh bye.

That’s just how ventilation works.

But will wi dies open on a 30 degree or 90 degree day meaningfully reduce covid? If not what’s the point beyond driving more teachers away.

Yes, open windows greatly improve ventilation - and meaningfully reduces transmission.

https://www.washingtonpost.com/opinions/2020/08/27/want-buy-schools-time-open-windows/
“But when we opened windows, even just six inches, we consistently saw air-exchange rates above the “excellent” target of five air changes per hour, with some rooms getting much more.”

https://www.reuters.com/world/europe/italian-study-shows-ventilation-can-cut-school-covid-cases-by-82-2022-03-22/
“With applications guaranteeing a complete replacement of the air in a classroom 2.4 times in an hour, infections were reduced by 40%. They were lowered by 66.8% with four air replacements per hour and by 82.5% with six air replacements, the study showed.”

Have you sent these articles to the MCPS building folks? They keep claiming opening windows works against the HVAC system whenever parents ask but clearly they are wrong. Guessing you don’t need much of a science background or degree for those jobs, lol.

Have they shared the data on the ACH (air change per hour)? Or co2 levels?

If the ACH is 6+ or co2 <700ppm with the windows closed, then the ventilation on the HVAC system is good.

If not, then crack open those windows 6”.

I asked our school (and then Facilities) to disclose this data. Crickets.

Anonymous wrote:Sure, I'll keep my windows open when it's 95 degrees outside and 100 degrees inside. No problem. Hope my principal doesn't mind me teaching in my two piece and flip flops.

OK - how many days in the school year is it 95 degrees outside? Couple weeks in September and in June? The weather here is fairly mild for most of the school year.

You can utilize the a/c *and* have the windows open 6".

Or not. If you DGAF about air quality/covid then don't open them.

Anonymous wrote:

Anonymous wrote:Looks like MCPS is planning to monitor CO2 levels - since that is an important measure of air quality. AND they plan to have a public-facing dashboard.

https://www.montgomeryschoolsmd.org/departments/procurement/uploads/9218.1/IAQ%20FINAL%204.22.22.pdf

Nope.
The Board of Education refused to fund it.
No plan.

When? I tried to search the minutes for the recent BOE meetings but couldn't find them. I did find the video from the meeting on June 13, where if you click on the 11:05 link for the Sustainability: Indoor Air Quality part of the agenda Seth Adams, Director of Facilities Management describes that they are actively in the middle of the RFP process for selecting vendors to pilot air quality monitoring programs for the Fall.

https://mcpsmd.new.swagit.com/videos/175390

Sure, I'll keep my windows open when it's 95 degrees outside and 100 degrees inside. No problem. Hope my principal doesn't mind me teaching in my two piece and flip flops.

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:LOL, dc moms are crazy

Really? So the kids in this area are stupid? They aren't smart? They haven't learned how covid spreads or how to keep people safe? Interesting that so many stupid people live in Montgomery County but we are supposed to have one of the best school systems. Must not be so great if parents are all so stupid.

A co2 monitor isn't going to help without many other layers in place. This is theater for attention.

Right. Other layers are in place. This is just another data point.

Jeez. People are just looking for things to complain about.

What are you talking about! There is no mitigation this school year. No masking, no distancing, no testing, no nothing. Plan to get Covid multiple times. What is the big deal, clearly you are ok with Covid?

Tests are available. Masks are available. Vaccines & boosters are available. HVAC systems have been upgraded/supplemented.

If you have concerns about a specific classroom there is no harm bringing in a CO2 monitor to verify adequate ventilation.

Available means nothing if not used. Same thing with a co2 monitor if mcps or the monitoring parent does not pay for repairs.

If MCPS can't update/modify the HVAC system to increase ventilation, then the teacher can open the window.

You’d need someone to properly study the airflow in the classroom to see if opening the windows will actually improve the air quality.

Ventilation is the best way to improve air quality.

If the ventilation is poor (high co2 levels) then opening the windows will help until they upgrade/modify HVAC system.

It depends on a number of factors actually. And it would be indefinite because it takes MCPS forever to upgrade. You really want your kids sitting in extremely hot or cold classrooms for sone marginal improvement in ventilation? 90 degrees inside while wearing their KN95?

If the co2 level is too high, then opening the windows absolutely will bring down the levels.

The weather isn’t that bad during the school year. My kid survived having the window open all last year.

I ignore anyone who talks in such absolute terms because again, it depends on a number of factors. Buh bye.

That’s just how ventilation works.

But will wi dies open on a 30 degree or 90 degree day meaningfully reduce covid? If not what’s the point beyond driving more teachers away.

Yes, open windows greatly improve ventilation - and meaningfully reduces transmission.

https://www.washingtonpost.com/opinions/2020/08/27/want-buy-schools-time-open-windows/
“But when we opened windows, even just six inches, we consistently saw air-exchange rates above the “excellent” target of five air changes per hour, with some rooms getting much more.”

https://www.reuters.com/world/europe/italian-study-shows-ventilation-can-cut-school-covid-cases-by-82-2022-03-22/
“With applications guaranteeing a complete replacement of the air in a classroom 2.4 times in an hour, infections were reduced by 40%. They were lowered by 66.8% with four air replacements per hour and by 82.5% with six air replacements, the study showed.”

Have you sent these articles to the MCPS building folks? They keep claiming opening windows works against the HVAC system whenever parents ask but clearly they are wrong. Guessing you don’t need much of a science background or degree for those jobs, lol.

Clearly you don't know much about HVAC if you think it will run efficiently with windows open.

If co2 level is high or ACH <5 then the HVAC system isn’t meeting air quality requirements.

Open windows until you can fix the HVAC.

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:LOL, dc moms are crazy

Really? So the kids in this area are stupid? They aren't smart? They haven't learned how covid spreads or how to keep people safe? Interesting that so many stupid people live in Montgomery County but we are supposed to have one of the best school systems. Must not be so great if parents are all so stupid.

A co2 monitor isn't going to help without many other layers in place. This is theater for attention.

Right. Other layers are in place. This is just another data point.

Jeez. People are just looking for things to complain about.

What are you talking about! There is no mitigation this school year. No masking, no distancing, no testing, no nothing. Plan to get Covid multiple times. What is the big deal, clearly you are ok with Covid?

Tests are available. Masks are available. Vaccines & boosters are available. HVAC systems have been upgraded/supplemented.

If you have concerns about a specific classroom there is no harm bringing in a CO2 monitor to verify adequate ventilation.

Available means nothing if not used. Same thing with a co2 monitor if mcps or the monitoring parent does not pay for repairs.

If MCPS can't update/modify the HVAC system to increase ventilation, then the teacher can open the window.

You’d need someone to properly study the airflow in the classroom to see if opening the windows will actually improve the air quality.

Ventilation is the best way to improve air quality.

If the ventilation is poor (high co2 levels) then opening the windows will help until they upgrade/modify HVAC system.

It depends on a number of factors actually. And it would be indefinite because it takes MCPS forever to upgrade. You really want your kids sitting in extremely hot or cold classrooms for sone marginal improvement in ventilation? 90 degrees inside while wearing their KN95?

If the co2 level is too high, then opening the windows absolutely will bring down the levels.

The weather isn’t that bad during the school year. My kid survived having the window open all last year.

I ignore anyone who talks in such absolute terms because again, it depends on a number of factors. Buh bye.

That’s just how ventilation works.

But will wi dies open on a 30 degree or 90 degree day meaningfully reduce covid? If not what’s the point beyond driving more teachers away.

Yes, open windows greatly improve ventilation - and meaningfully reduces transmission.

https://www.washingtonpost.com/opinions/2020/08/27/want-buy-schools-time-open-windows/
“But when we opened windows, even just six inches, we consistently saw air-exchange rates above the “excellent” target of five air changes per hour, with some rooms getting much more.”

https://www.reuters.com/world/europe/italian-study-shows-ventilation-can-cut-school-covid-cases-by-82-2022-03-22/
“With applications guaranteeing a complete replacement of the air in a classroom 2.4 times in an hour, infections were reduced by 40%. They were lowered by 66.8% with four air replacements per hour and by 82.5% with six air replacements, the study showed.”

Have you sent these articles to the MCPS building folks? They keep claiming opening windows works against the HVAC system whenever parents ask but clearly they are wrong. Guessing you don’t need much of a science background or degree for those jobs, lol.

Have they shared the data on the ACH (air change per hour)? Or co2 levels?

If the ACH is 6+ or co2 <700ppm with the windows closed, then the ventilation on the HVAC system is good.

If not, then crack open those windows 6”.

Anonymous wrote:More information on opening windows:

https://www.medicalnewstoday.com/articles/schools-will-need-more-than-fresh-air-to-stop-covid-19-mit-study#Examining-the-effects-of-body-heat

Yup.

“To reduce SARS-CoV-2 exposure indoors, it is crucial to space seating according to guidelines, wear masks, and keep windows open.”

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:LOL, dc moms are crazy

Really? So the kids in this area are stupid? They aren't smart? They haven't learned how covid spreads or how to keep people safe? Interesting that so many stupid people live in Montgomery County but we are supposed to have one of the best school systems. Must not be so great if parents are all so stupid.

A co2 monitor isn't going to help without many other layers in place. This is theater for attention.

Right. Other layers are in place. This is just another data point.

Jeez. People are just looking for things to complain about.

What are you talking about! There is no mitigation this school year. No masking, no distancing, no testing, no nothing. Plan to get Covid multiple times. What is the big deal, clearly you are ok with Covid?

Tests are available. Masks are available. Vaccines & boosters are available. HVAC systems have been upgraded/supplemented.

If you have concerns about a specific classroom there is no harm bringing in a CO2 monitor to verify adequate ventilation.

Available means nothing if not used. Same thing with a co2 monitor if mcps or the monitoring parent does not pay for repairs.

If MCPS can't update/modify the HVAC system to increase ventilation, then the teacher can open the window.

You’d need someone to properly study the airflow in the classroom to see if opening the windows will actually improve the air quality.

Ventilation is the best way to improve air quality.

If the ventilation is poor (high co2 levels) then opening the windows will help until they upgrade/modify HVAC system.

It depends on a number of factors actually. And it would be indefinite because it takes MCPS forever to upgrade. You really want your kids sitting in extremely hot or cold classrooms for sone marginal improvement in ventilation? 90 degrees inside while wearing their KN95?

If the co2 level is too high, then opening the windows absolutely will bring down the levels.

The weather isn’t that bad during the school year. My kid survived having the window open all last year.

I ignore anyone who talks in such absolute terms because again, it depends on a number of factors. Buh bye.

That’s just how ventilation works.

But will wi dies open on a 30 degree or 90 degree day meaningfully reduce covid? If not what’s the point beyond driving more teachers away.

Yes, open windows greatly improve ventilation - and meaningfully reduces transmission.

https://www.washingtonpost.com/opinions/2020/08/27/want-buy-schools-time-open-windows/
“But when we opened windows, even just six inches, we consistently saw air-exchange rates above the “excellent” target of five air changes per hour, with some rooms getting much more.”

https://www.reuters.com/world/europe/italian-study-shows-ventilation-can-cut-school-covid-cases-by-82-2022-03-22/
“With applications guaranteeing a complete replacement of the air in a classroom 2.4 times in an hour, infections were reduced by 40%. They were lowered by 66.8% with four air replacements per hour and by 82.5% with six air replacements, the study showed.”

Have you sent these articles to the MCPS building folks? They keep claiming opening windows works against the HVAC system whenever parents ask but clearly they are wrong. Guessing you don’t need much of a science background or degree for those jobs, lol.

Clearly you don't know much about HVAC if you think it will run efficiently with windows open.

Yeah, TBH the “efficiency” of a 20 year old HVAC system that wasn’t designed for an airborne pandemic doesn’t interest me that much. Get fresh air in the building. If they can’t show us that it’s coming through HVAC, seeing it coming thru windows is fine as an alternative. Get the building fixed if you feel so strongly about it.

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:LOL, dc moms are crazy

Really? So the kids in this area are stupid? They aren't smart? They haven't learned how covid spreads or how to keep people safe? Interesting that so many stupid people live in Montgomery County but we are supposed to have one of the best school systems. Must not be so great if parents are all so stupid.

A co2 monitor isn't going to help without many other layers in place. This is theater for attention.

Right. Other layers are in place. This is just another data point.

Jeez. People are just looking for things to complain about.

What are you talking about! There is no mitigation this school year. No masking, no distancing, no testing, no nothing. Plan to get Covid multiple times. What is the big deal, clearly you are ok with Covid?

Tests are available. Masks are available. Vaccines & boosters are available. HVAC systems have been upgraded/supplemented.

If you have concerns about a specific classroom there is no harm bringing in a CO2 monitor to verify adequate ventilation.

Available means nothing if not used. Same thing with a co2 monitor if mcps or the monitoring parent does not pay for repairs.

If MCPS can't update/modify the HVAC system to increase ventilation, then the teacher can open the window.

You’d need someone to properly study the airflow in the classroom to see if opening the windows will actually improve the air quality.

Ventilation is the best way to improve air quality.

If the ventilation is poor (high co2 levels) then opening the windows will help until they upgrade/modify HVAC system.

It depends on a number of factors actually. And it would be indefinite because it takes MCPS forever to upgrade. You really want your kids sitting in extremely hot or cold classrooms for sone marginal improvement in ventilation? 90 degrees inside while wearing their KN95?

If the co2 level is too high, then opening the windows absolutely will bring down the levels.

The weather isn’t that bad during the school year. My kid survived having the window open all last year.

I ignore anyone who talks in such absolute terms because again, it depends on a number of factors. Buh bye.

That’s just how ventilation works.

But will wi dies open on a 30 degree or 90 degree day meaningfully reduce covid? If not what’s the point beyond driving more teachers away.

Yes, open windows greatly improve ventilation - and meaningfully reduces transmission.

https://www.washingtonpost.com/opinions/2020/08/27/want-buy-schools-time-open-windows/
“But when we opened windows, even just six inches, we consistently saw air-exchange rates above the “excellent” target of five air changes per hour, with some rooms getting much more.”

https://www.reuters.com/world/europe/italian-study-shows-ventilation-can-cut-school-covid-cases-by-82-2022-03-22/
“With applications guaranteeing a complete replacement of the air in a classroom 2.4 times in an hour, infections were reduced by 40%. They were lowered by 66.8% with four air replacements per hour and by 82.5% with six air replacements, the study showed.”

Have you sent these articles to the MCPS building folks? They keep claiming opening windows works against the HVAC system whenever parents ask but clearly they are wrong. Guessing you don’t need much of a science background or degree for those jobs, lol.

Clearly you don't know much about HVAC if you think it will run efficiently with windows open.