Monitor and improve the air in your home or workplace.
Carbon dioxide monitors that tell you whether a room is ventilated, ozone machines for odors in an empty room, face coverings and the accessories that go with them. Fast shipping direct to your door all across the USA.
Free delivery across the United States on orders $50+ · Prices in US dollars
Free delivery across the United States on orders of $50 or morePrices in US dollars, with no sales tax added at the checkoutDelivery in 5 to 7 days after a 24 to 48 hour handling timeTracking number emailed as soon as your order ships
Why shop here
What this shop is, plainly
Air quality products attract big promises. Here is what we can actually stand behind.
Real-time readings
Both CO2 monitors refresh their reading every second and show carbon dioxide, temperature and humidity on one screen. Open a window and watch the number move.
Manufacturer figures, marked as theirs
Where a maker states a range, an output or a coverage figure, it is on the product page and identified as theirs. We publish no figure we cannot trace.
Monitor and improve, under one roof
A meter to tell you the room is stuffy, an ozone machine for the smell nobody can shift. One range, one delivery.
People who pack the orders
Email reaches the team that picks and packs, seven days a week. No ticket queue, and no script.
Delivery you can check
Free across the United States on orders of $50 or more, Express Delivery at $22 below it or as a paid delivery option, 5 to 7 days after a 24 to 48 hour handling time. Tracking emailed when it ships.
Returns, stated in full
Fifteen days to change your mind under our own policy, and a faulty item put right at no cost to you. The returns page says exactly what each costs.
The range
Everything we sell
Grouped by what it is for. The figure on the card is the figure the checkout charges.
Questions
The things people ask first
Two carbon dioxide monitors (a palm sized meter and a jumbo wall mounted display), two ozone machines for treating odors in an unoccupied room, a reusable face mask and a face shield in packs, a UV-C lamp wand and a cordless nano spray gun.
How well a room is ventilated. People breathe out carbon dioxide, so in a room with too little fresh air the reading climbs. Outdoor air sits around 400 to 420 ppm; a well ventilated room usually stays under 800; above roughly 1000 to 1500 ppm the room is recycling its own air.
No. It reads carbon dioxide, temperature and humidity only. Fit a carbon monoxide alarm and a smoke alarm separately if you need them.
The listings publish measuring ranges but no accuracy tolerance or calibration figure, so we do not quote one. If you need documented accuracy for compliance, ask us before you order.
No. Ozone is a respiratory irritant. Both ozone machines are used in a space with nobody, no pet and no plant in it, and the space is ventilated before anyone goes back in.
No. The reusable face mask and the face shield are face coverings. Neither is a respirator, a medical mask or certified protective equipment.
Free across the United States on orders of $50 or more. Below that the only option is Express Delivery at $22, which you can also choose on any order as a paid delivery option. Orders arrive in 5 to 7 days after a 24 to 48 hour handling time.
Five to seven days across the United States, after a 24 to 48 hour handling time while the order is picked and packed.
Yes, emailed as soon as your order ships. You can follow it on the track your parcel page. We only receive the code once the parcel has left, so there is nothing to send before then.
US dollars. The price on the page is the price charged at the checkout, and no sales tax is added.
Card payment and PayPal, on a secure checkout. Card details are handled by the payment provider and never reach this website.
Yes, under our own policy: within 15 days of purchase on an unused item in its original packaging, less a $29 packing and handling fee, and you pay return shipping. There is no general federal cooling-off period for an online purchase in the United States, so that window is ours. If an item is faulty, we put it right and pay the shipping.
We cover it. Email the team with your order number and a photograph; we pay the return shipping and the refund is processed within 24 to 48 hours of the item arriving back.
Yes. Enter valued-customer at the cart for 15 per cent off.
No, this is an online shop. The administration office at The Lab, 2420 17th St, Denver is not a retail address.
CO2 Company USA, a division of Caruso Consulting Co Ltd, with a US administration office at The Lab, 2420 17th St, Denver, CO 80202.
Email theteam@co2monitor.store with your order number and the email address used at the checkout. We answer seven days a week.
No. A CO2 monitor is a ventilation gauge, an ozone machine is an odor treatment unit for an empty room, the UV lamp emits UV-C light, and the mask and shield are face coverings. No health outcome, kill rate or filtration standard is claimed for anything on this site.
Yes. Use the wholesale quote page with the quantities you need; schools and offices fitting out several rooms are the usual case.
No. Orders are placed on the website; the call centre number is for questions rather than ordering.
Contact us within 12 hours. Most orders ship within 24 hours, and once packing has started the order can no longer be changed.
Before you buy
What a CO2 reading means, and what it does not
Carbon dioxide indoors is mostly a headcount problem. People breathe it out, and if fresh air is not replacing what is in the room, the level rises. That makes it a good stand in for ventilation, which is otherwise invisible.
The reference points
Outdoor air sits around 400 to 420 ppm, so that is your floor. A room with air genuinely moving through it tends to stay below 800 ppm. Somewhere above 1000 to 1500 ppm you are mostly rebreathing the room's own air. Those are ventilation benchmarks, not health thresholds, and we do not dress them up as anything else.
Watch it change, not just the number
Because the reading updates every second, you can open a window and watch what happens. Some rooms drop hundreds of ppm in a couple of minutes. Others barely move, which tells you the airflow is not where you assumed. That one test is worth more than any absolute reading.
What a CO2 monitor is not
It is a ventilation gauge. It does not detect carbon monoxide, smoke or particulates, and it is not a medical or safety device. If you need a carbon monoxide alarm, fit a proper CO alarm alongside it. The same plainness applies to the rest of the range: an ozone machine treats odors in an empty room and makes no health claim, a UV-C lamp emits UV-C light and nothing more is claimed for it, and a face mask or face shield is a face covering, not a respirator.
Delivery and returns, in one paragraph
Free across the United States on orders of $50 or more, Express Delivery at $22 below that or as a paid delivery option on any order, 5 to 7 days after a 24 to 48 hour handling time, with a tracking number emailed when it ships. You have 15 days from purchase to change your mind under our own policy, and the returns page states what that costs. A faulty item is put right at no cost to you, and your state's consumer protection laws are not affected.
Eco Pack, and a greener delivery
After introducing our Eco Pack packaging, we set the goal of working closely with our delivery providers to reduce our carbon emissions footprint. Thank you for being part of our journey to a brighter, greener future.
Shop online
Free delivery across the United States on orders of $50 or more
Prices in US dollars
15 day change of mind, our own policy
Talk to us
Not sure which one you need?
Tell us the room, how many people use it and what you are trying to find out, and we will tell you which monitor fits, or whether you need one at all.
CO2 Company USA
A division of Caruso Consulting Co Ltd
- AdministrationThe Lab, 2420 17th St, Denver, CO 80202, United States
- CorporateSuite 22, 47 Moo 1, T. Nawoong, Meaung, Phetchaburi 76000, Thailand
- Emailtheteam@co2monitor.store
- International call centre+66 98 391 3877