Has anybody sent their kid to school with a CO2 monitor (to measure ventilation)?

[Anonymous]

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.

That’s nonsense. ACH is ACH, it doesn’t matter what the variant is.

[Anonymous]

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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”.

Per the most recent research, 12 inches would be better.

[Anonymous]

Anonymous wrote:

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.

What? Are you 12?

[Anonymous]

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.”

What were the differences between east and west facing windows? Just curious. We didn’t have AC as a kid and my east facing bedroom was so stuffy and stagnant at night while my sisters west facing room got a wonderful breeze.

Too bad you didn’t have a co2 monitor to measure ventilation so you could compare.

The question is why researchers conducting the study didn’t include this, no? My anecdotal measurements in my kid’s classroom would not answer that question.

[Anonymous]

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:

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”.

Per the most recent research, 12 inches would be better.

That's what she said.

Link?

[Anonymous]

Anonymous wrote:

Anonymous wrote:

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.

What? Are you 12?

PP said there are new guidelines. DCUM etiquette is to provide sources for your claims. What are you - 80?

Ventilation is ventilation. If the HVAC isn't adequate then open the window.

[Anonymous]

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.

Don't worry, rehydration salts will be handed out on back to school night. Hope you can make it until then!

[Anonymous]

New poster. Yes we have. Most of the day it's somewhere in the 800-1500 range, but has spiked above 2000 at events like class parties with parents in the room, big gatherings in the all-purpose room, etc.

(And to all the people who think it's crazy... if you"ve already bought a $200 CO2 monitor to help you make wise and informed decisions about when/where to do more things indoors, take off masks indoors, etc-- money well spent, IMO, so I hope you don't think that part's the crazy part-- then it would be kind of a waste not to use it to find out more about the ventilation situation at school, right?)

[Anonymous]

Anonymous wrote:New poster. Yes we have. Most of the day it's somewhere in the 800-1500 range, but has spiked above 2000 at events like class parties with parents in the room, big gatherings in the all-purpose room, etc.

(And to all the people who think it's crazy... if you"ve already bought a $200 CO2 monitor to help you make wise and informed decisions about when/where to do more things indoors, take off masks indoors, etc-- money well spent, IMO, so I hope you don't think that part's the crazy part-- then it would be kind of a waste not to use it to find out more about the ventilation situation at school, right?)

Why the drama, you choose in person so live with it. You aren't going to fix it.

[Anonymous]

Anonymous wrote:So you get bad results and what are you going to do about it?

Depends on how bad. If it's in the thousands ppm, I'll send him in with a mini oxygen tank and mask assembly.