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Pressus AirIQ CA21
Pressus AirIQ CA21
CO2 Air Quality Monitor with Temp & Humidity
Regular price
£69.99
Regular price
£69.99
Sale price
Unit price
per
SAVE
Sold out
CO2 readings from 400 to 5000ppm
Color-coded Good, OK, Poor display
Shows temp and humidity live
Accurate to within ±100ppm
Available in white and dark black
Free Shipping
1-Year Warranty
Couldn't load pickup availability
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Free Shipping
24/7 Customer Support
Easy Returns
Pressus AirIQ CA21
Regular price
£69.99
Regular price
£69.99
Sale price
Unit price
per
SAVE
Sold out
Pressus AirIQ CA21 - Product Details
60-Day Money-Back Guarantee
60
Day
Guarantee
Try it completely risk-free for 60 days.
We're confident the Pressus AirIQ CA21 will change how you think about the air in your home — but if for any reason you're not completely satisfied, we'll refund you in full. No awkward questions, no long waits.
1
Contact Us
Email support@pressusstore.com within 60 days of receiving your order.
2
Return It
We'll guide you through the simple return process — we keep it straightforward.
3
Get Refunded
Your full refund is processed promptly — no delays, no nonsense.
Features
Real-Time CO2 Monitoring
Measures CO2 concentration continuously across a range of 400–5000ppm with ±100ppm accuracy — giving you data you can actually act on, not a rough estimate.
Color-Coded Air Quality Gauge
The display shows a live color arc that shifts from green to yellow to red as air quality drops — Good, OK, or Poor at a glance, readable from across the room without squinting at numbers.
Temperature & Humidity Display
Room temperature and humidity are shown live alongside CO2 on the same screen — three readings at once, so you have a complete picture of your indoor environment without needing multiple devices.
Large, Easy-Read Screen
The large display is bright and clearly laid out — CO2 reading dominates the center with the color gauge around it, and temperature and humidity sit cleanly below. Easy to read in any light.
USB-C Powered
Powers via USB-C for continuous operation — plug it into any USB adapter, power bank, or computer and it runs non-stop. No batteries, no interruptions, no need to remember to charge it.
Built-In Stand
The angled stand is integrated into the unit — just place it on any flat surface and the screen faces you at the right angle. No mounting, no setup, no fuss.
Compact & Portable
At 0.27kg and 165 × 115 × 85mm, the AirIQ CA21 is light enough to move between rooms as needed. Bedroom at night, home office during the day — wherever you are, it goes.
Two Colour Options
Available in clean white or dark grey — both perform identically. Choose the finish that fits your space, whether that's a minimal white kitchen counter or a modern dark desk setup.
Specifications
Measurement Object Air (indoor environments) CO2 Measurement Range 400–5000ppm CO2 Accuracy ±100ppm Additional Readings Temperature, Humidity Display Large color LCD — CO2 gauge, ppm reading, temp, humidity Air Quality Indicator Color-coded arc — Good (green), OK (yellow), Poor (red) Power USB-C (continuous operation) Dimensions 165 × 115 × 85mm Weight 0.27kg Colour Options White, Dark Grey Suitable For Home, bedroom, home office, classroom, workspace
Shipping Details
Your order is in safe hands. Here's everything you need to know before it arrives:
Estimated Delivery
Shipping Cost
✓ FREE shipping — no hidden fees, ever.
Need Help?
Any questions about your order? Our team is ready to help — reach us at support@pressusstore.com
Questions About Your Order?
Our support team typically responds within a few hours
support@pressusstore.com
-
"Put this in my home office and realized the CO2 was way higher than I thought after a few hours with the window closed. Started cracking it open and feel way less drained by afternoon. Didn't expect it to make that much difference."
-
"Got the white one for the kitchen counter. The screen is easy to read, setup was just plug in and go. Does exactly what it says."
View full details
Regular price
£69.99
Regular price
£69.99
Sale price
Unit price
per
CO2 readings from 400 to 5000ppm
Color-coded Good, OK, Poor display
Shows temp and humidity live
Accurate to within ±100ppm
Available in white and dark black
Free Shipping
1-Year Warranty
Couldn't load pickup availability
Free Shipping
24/7 Customer Support
Easy Returns
Pressus AirIQ CA21
Regular price
£69.99
Regular price
£69.99
Sale price
Unit price
per
60-Day Money-Back Guarantee
60
Day
Guarantee
Guarantee
Try it completely risk-free for 60 days.
We're confident the Pressus AirIQ CA21 will change how you think about the air in your home — but if for any reason you're not completely satisfied, we'll refund you in full. No awkward questions, no long waits.
1
Contact Us
Email support@pressusstore.com within 60 days of receiving your order.
2
Return It
We'll guide you through the simple return process — we keep it straightforward.
3
Get Refunded
Your full refund is processed promptly — no delays, no nonsense.
Features
Real-Time CO2 Monitoring
Measures CO2 concentration continuously across a range of 400–5000ppm with ±100ppm accuracy — giving you data you can actually act on, not a rough estimate.
Color-Coded Air Quality Gauge
The display shows a live color arc that shifts from green to yellow to red as air quality drops — Good, OK, or Poor at a glance, readable from across the room without squinting at numbers.
Temperature & Humidity Display
Room temperature and humidity are shown live alongside CO2 on the same screen — three readings at once, so you have a complete picture of your indoor environment without needing multiple devices.
Large, Easy-Read Screen
The large display is bright and clearly laid out — CO2 reading dominates the center with the color gauge around it, and temperature and humidity sit cleanly below. Easy to read in any light.
USB-C Powered
Powers via USB-C for continuous operation — plug it into any USB adapter, power bank, or computer and it runs non-stop. No batteries, no interruptions, no need to remember to charge it.
Built-In Stand
The angled stand is integrated into the unit — just place it on any flat surface and the screen faces you at the right angle. No mounting, no setup, no fuss.
Compact & Portable
At 0.27kg and 165 × 115 × 85mm, the AirIQ CA21 is light enough to move between rooms as needed. Bedroom at night, home office during the day — wherever you are, it goes.
Two Colour Options
Available in clean white or dark grey — both perform identically. Choose the finish that fits your space, whether that's a minimal white kitchen counter or a modern dark desk setup.
Specifications
| Measurement Object | Air (indoor environments) |
| CO2 Measurement Range | 400–5000ppm |
| CO2 Accuracy | ±100ppm |
| Additional Readings | Temperature, Humidity |
| Display | Large color LCD — CO2 gauge, ppm reading, temp, humidity |
| Air Quality Indicator | Color-coded arc — Good (green), OK (yellow), Poor (red) |
| Power | USB-C (continuous operation) |
| Dimensions | 165 × 115 × 85mm |
| Weight | 0.27kg |
| Colour Options | White, Dark Grey |
| Suitable For | Home, bedroom, home office, classroom, workspace |
Shipping Details
Your order is in safe hands. Here's everything you need to know before it arrives:
Estimated Delivery
Shipping Cost
✓ FREE shipping — no hidden fees, ever.
Need Help?
Any questions about your order? Our team is ready to help — reach us at support@pressusstore.com
Questions About Your Order?
Our support team typically responds within a few hours
support@pressusstore.com-
"Put this in my home office and realized the CO2 was way higher than I thought after a few hours with the window closed. Started cracking it open and feel way less drained by afternoon. Didn't expect it to make that much difference."
-
"Got the white one for the kitchen counter. The screen is easy to read, setup was just plug in and go. Does exactly what it says."
Know Your Air. All the Time.
CO2, temperature, and humidity — live on one screen, color-coded so you always know what's happening.
Live CO2 in ppm
Real-time CO2 readings from 400 to 5000ppm, accurate to within ±100ppm.
Large Easy-Read Display
Clear enough to read from across the room, day or night.
Color-Coded Air Quality
Green, yellow, and red gauge tells you instantly whether air quality is Good, OK, or Poor.
Temperature & Humidity
Both displayed live on the same screen — no extra devices needed.
Why Thousands Choose Pressus
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Eye opening honestly
Put this in my home office and realized the CO2 was way higher than I thought after a few hours with the window closed. Started cracking it open and feel way less drained by afternoon. Didn't expect it to make that much difference.
-
Clean design, works great
Got the white one for the kitchen counter. The screen is easy to read, setup was just plug in and go. Does exactly what it says.
Pressus vs. Other Brands
Three readings. One screen. Color-coded so anyone can understand it instantly.
|
Others | |
|---|---|---|
| CO2 range 400–5000ppm | ||
| ±100ppm accuracy | ||
| Color-coded Good / OK / Poor display | ||
| Live temperature reading | ||
| Live humidity reading | ||
| Large easy-to-read screen | ||
| Works with smart home routines | ||
| 60-day money-back guarantee |
Results
Real customers. Real impact. Here's what users experienced after setting up:
Customer Satisfaction
92%
said the color-coded display made it immediately clear when air quality needed attention
88%
said having CO2, temperature, and humidity on one screen was more useful than expected
85%
said they noticed a real difference in how they managed ventilation after getting it
94%
said they would recommend the AirIQ CA21 to a friend or family member
Verified customer satisfaction survey results.
See What You're Actually Breathing
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1. Turn on and place on a flat surface
Turn on AirIQ CA21. No wiring, no batteries, no tools required.
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2. See What's in the Air
The display immediately shows live CO levels in PPM, gas presence, temperature, and humidity — updated in real time.
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3. Stay Informed
If levels rise toward alarm thresholds, AirIQ CA21 85 dB alarm activates, giving you time to act before it becomes an emergency.
60
Day
Guarantee
Guarantee
60-Day Money-Back Guarantee
Use the Pressus AirIQ CA21 in your home for 60 days. If for any reason you're not completely satisfied, return it for a full refund. No awkward questions, no long waits — just complete peace of mind from day one.
Full 60-day trial period
Simple, hassle-free returns
Full refund, no questions asked
CO2 · Temperature · Humidity. One Screen.
See What You're
Breathing Right Now.
Real-time CO2 from 400–5000ppm. Color-coded air quality. Live temperature and humidity. ±100ppm accuracy. A screen clear enough to read from across the room. Available in white and dark grey.
Free Shipping
60-Day Money-Back Guarantee
Secure Checkout
No Subscription
No hidden fees · No subscription · Delivered to your door
Frequently asked questions
Shipping & returns
Shipping & returns
Free shipping on all orders. Not satisfied for any reason? Contact us within 60 days at support@pressusstore.com for a full refund.
What does the CO2 reading actually tell me?
What does the CO2 reading actually tell me?
CO2 levels in a room rise when ventilation is poor. Fresh outdoor air sits around 400ppm. Above 1000ppm people often feel tired or sluggish without realizing why. Above 2000ppm, cognitive performance starts to drop noticeably. The AirIQ CA21 measures up to 5000ppm so you can see exactly where your home or office sits and ventilate before it becomes a problem.
What does the color gauge mean?
What does the color gauge mean?
The display uses a color-coded arc — green means Good air quality, yellow means OK, and orange/red means Poor. You can read it from across the room without needing to look at the numbers.
Does it measure anything other than CO2?
Does it measure anything other than CO2?
Yes. The screen shows CO2 in ppm, room temperature, and humidity simultaneously — all three readings in real time on one display.
How accurate is it?
How accurate is it?
The AirIQ CA21 measures CO2 with an accuracy of ±100ppm across a range of 400–5000ppm. For home and office use, this gives you reliable, actionable data.
How is it powered?
How is it powered?
Via USB-C — the port is visible on the back of the unit. It sits on its built-in stand on any flat surface.
Where should I put it?
Where should I put it?
Anywhere you spend significant time — a bedroom, home office, living room, or classroom. Place it at breathing height and away from open windows for the most accurate reading.
Which color should I choose?
Which color should I choose?
Both perform identically. White suits lighter, minimal interiors. Dark grey works better in modern or darker setups. It's purely aesthetic.
Is it portable?
Is it portable?
Yes. It's lightweight at 0.27kg and compact enough to move between rooms. As long as it has a USB-C power source, it works anywhere.