You invest in their potential, and yours. Now check the room it happens in.
You look after everyone. Let the house look after you.
You already invest in the lessons, the laptop, the sports and the hours, for them and for yourself. Then the work and the homework happen in a room you may never have measured, with the windows shut all winter. In Health Canada's Edmonton homes, the typical winter CO2 reading was 696 ppm, and the top 5% of readings were above 1,250 ppm (Health Canada, 2021). Its long-term limit for homes is 1,000 ppm, averaged over 24 hours.
Book a home visit Take the 60-second Room Reading
Rated 4.3 on GoogleLicensed and bondedOur own techniciansWritten price before any work
Protect Your Potential: the signs.
- The house feels stale by mid-afternoon.
- Noise through the wall, glare on the screen, or a lamp that's never right.
- One room runs warmer than the rest by 2 p.m., and colder by 4.
- The office, or their room at homework time, gets stuffy an hour in with the door shut.
- Homework ends up at the kitchen table because their room isn't set up for it.
- You'd rather work at the café than in your own home office.
You already invest in their potential, and yours.
The laptop, the homework and the hours all land in one room. The Guardian Quick Scan, $249 + GST, measures it.
You can't see CO2. A reader can.
Health Canada's Edmonton homes in winter (2021 guideline): the typical (median) CO2 reading was 696 ppm, and the top 5% of readings were above 1,258 ppm. The dashed line is Health Canada's long-term limit for homes, 1,000 ppm averaged over 24 hours, so a reading above it for an hour or two is a reason to measure, not a breach.
- Canadians spend about 90% of their time indoors, most of it at home (Health Canada).
- About 1 in 6 employed Canadians mostly work from home, and another 1 in 10 splits the week between home and elsewhere (Statistics Canada, May 2025).
- Where Health Canada measured homes in both seasons, the typical winter CO2 reading ran about 80 to 160 ppm higher than summer (Health Canada, 2021). Windows shut, the air changes.
- In a Quebec City study, 7 in 10 homes were below the code ventilation rate even though most had a mechanical system (INSPQ and National Research Council, 2015).
- Health Canada's own advice for lowering CO2 at home: run the ventilation system higher or longer, use the range hood, and keep the furnace fan moving air (Health Canada).
- Health Canada recommends keeping indoor humidity between 30% and 50%. A hygrometer shows whether your rooms are in it.
Researchers have also measured how air, temperature and noise affect work in offices and classrooms. Those weren't homes, so those studies live in our article, not on this page, and we don't claim them for our equipment. We measure your room and let you decide.
What's the room doing while you work?
Six questions, about a minute. What's worth measuring where the work and homework happen, and the ritual that fits.
Your answers stay on this page. We don't save them or use them for advertising.
We measure first. Then we fix what the readings show.
It starts with a reading. In the Guardian Quick Scan ($249 + GST) we measure CO2, humidity and temperature at the desk and the homework spot, show you the numbers next to Health Canada's guidance, then set up a ritual around them: fresh air with the windows shut, a steady temperature, humidity in the 30 to 50% range, good light and quiet.
We will not sell you something you do not need. Read the article behind this page.
Three rituals for the room where the work happens.
$495–$1,295 + GST
- The Workday Air Check
- A CO2 and humidity monitor where the work happens, set up with you
- Task light where you work, warm dim light where you wind down
- Thermostat settings for the room, or a whole-home humidifier ($899 + GST) if winter readings run dry
$1,500–$3,500 + GST
- The Steady Room
- Airflow balancing, so the office and their bedroom keep pace with the rest of the house
- An HRV or ERV check, tune-up and settings, or targeted ventilation for the room
- Humidity control set to the 30 to 50% Health Canada recommends
$4,000–$8,000+ + GST
- The Quiet Office
- A new HRV or ERV: fresh air with the windows shut, and most of the heat kept
- Zoning, so the office, the study room and the bedroom can each have their own temperature
- Noise reduction, with equipment chosen by its rated sound level
Package prices, plus GST. Where your home lands in the range depends on the home visit and an agreed scope; "+" means the scope can go higher. You get a written price before any work, and nothing is installed without your approval.
The Guardian Quick Scan, $249 + GST.
- The room first. Where the work and homework happen, when it feels stuffy, warm or loud, and who's home.
- The readings, in front of you. CO2, humidity and temperature at the desk, the homework spot and the bedroom.
- Your Room Reading card. Your numbers next to Health Canada's guidance, written down, to keep.
- Your Workspace Plan. The three rituals side by side, with prices + GST. You decide in your own time.
No pitch at the desk. We will not sell you something you do not need.
Give the room a reading.
A Guardian Quick Scan makes a thoughtful gift for a family that works and studies at home. Ask us when you book.
Not sure which room? Call us and we'll help you choose: (587) 792-1456
What we measure, and what we don't claim.
What does the Guardian Quick Scan measure?
CO2, humidity and temperature where the work and homework happen, and in the bedroom. We show you each reading next to Health Canada's guidance: a long-term CO2 limit of 1,000 ppm averaged over 24 hours, and 30 to 50% humidity.
Will this help me or my kids focus?
It's a fair question, and we won't promise it. We don't make focus, learning, health or productivity claims for anything we sell. What we can do is measure the room where you and your kids work, show you the numbers next to Health Canada's guidance, and fix what the readings show.
We already have an HRV. Why check?
Having one isn't the same as having it set up. In a Quebec City study, 7 in 10 homes were below the code ventilation rate even though most had a mechanical system. We check how yours is set and running.
Is CO2 in the house dangerous?
Health Canada uses CO2 mainly as a gauge of whether a room gets enough fresh air. Typical readings in the homes it measured were below its limit, but closed rooms can climb in winter. That's why we measure.
What happens after I book?
A person calls you back the same day to set a time. At the Quick Scan you get your readings and a written price before any work.
30 years in CalgaryRated 4.3 on GoogleLicensed and bondedOur own techniciansWritten price before any work
Indoor air quality consultation
Request a consult about this air quality system
The right air quality system depends on your house, not on a catalogue. A technician measures what you have, explains the options that fit it, and leaves you a written number. No price is quoted before that visit.
Book your assessment
Book your assessment
- Installed by our own technicians
- Your details stay with us
- Call (587) 792-1456 or request service online any time
Prefer to talk now? Call (587) 792-1456