Remove CO2 From Your Home

Windows Closed
No Exhaust Fans

Remove CO2 From Your Home

Windows Open
With Exhaust Fans

The Solution to Pollution is Dilution

Dilute inside air by turning on an exhaust fans or opening windows and doors where it is safe to do so.

In commercial spaces with HVACs and elevated interior CO2 levels the recommendation is to run the system with the only fan on to reduce CO2 levels. This option may not be available in most newer buildings, commercial or residential.

Where Does CO2 Come From inside my home?

CO2 Is Created by People, Gas stoves, hot Water Heaters, 

Inside Garages, Any Open Flame 

The primary way CO2 is generated inside a home is people breathing. CO2 is also created from combustion by burning oil for heat, gas powered heating systems, gas hot water heaters, gas dryers, and gas stoves. These are the common sources; your home may have different points of combustion.

Outside air contains higher levels of CO2 than ever before.

Natural gas is widely used by PG&E to generate electricity as reported in 2018 to the California Energy Commission. This generates CO2. As more wind energy turbines and solar panel farms come online, we can hope this CO2 generation from PG&E will be reduced.

The California wildfires creates additional CO2 as well as carbon black/snoot that impacts our breathing. We can filter the soot/carbon black out of our indoor air. We can all change our energy usage habits to reduce the CO2 in our atmosphere. It is unknown if our efforts will be enough and in time to modify the course of climate change, as this needs to be a serious global effort. But, it does start with one person parking their car and riding a bike to work. Please encourage bike riders and stop trying to run over them.

Ventilation is Recommended for Elevated Levels of CO2

Running a HEPA or carbon-based air purifier will NOT remove CO2.  We do not recommend using any air purifier that creates ozone (electrostatic models). Your best solution for air purification is HEPA paper filters. Carbon or charcoal can safely be added – thicker black insert the better. 

Turn on your kitchen and bath exhaust fans to bring in more outside air. Before doing this, consider the outside levels of soot and carbon black from the recent wildfires. HEPA filters on air purifiers and HVAC makeup air will remove most soot and carbon black. You may also consider and ultra fine HEPA filter. Start your search for your solution for ultra fine HEPA filters here: Filtrete. This is not an affiliate link.


Add Plants to Your Indoor Space

The oxygen-CO2 cycle of plants will remove a small amount of the excess CO2 from your air. Plants can make a minimal to moderate improvement in your air quality. 

Fertilize and water the plants so they will grow. More plant = less CO2. Don’t overwater.

It is CRITICAL that you don’t allow mold growth on the top of the soil. To discourage this type of mold growth, use an organic fertilizer that has a soap base. This soap base will from a seal of sorts on the top of the soil and prevent mold growth. A great, safe DIY pesticide can be found here: Killing Spider Mites and Aphids Dead. This is safe and effective.

What is an Ideal CO2 level in a home?

Using CO2 as an indicator of ventilation, ASHRAE has recommended indoor CO2 concentrations be maintained at—or below—1,000 ppm in schools and 800 ppm in offices (see chart below). Clearly the outdoor CO2 concentration directly impacts the indoor concentration.

Carbon dioxide levels and potential health problems are indicated below: 250-350 ppm: background (normal) outdoor air level. 350-1,000 ppm: typical level found in occupied spaces with good air exchange. 1,000-2,000 ppm: level associated with complaints of drowsiness and poor air quality.

250 – 400 ppm: background (normal) outdoor air level. 400 – 1,000 ppm: typical level found in occupied spaces with good air exchange. 1,000 – 2,000 ppm: level associated with complaints of drowsiness and poor air. 2,000 – 5,000 ppm: level associated with headaches, sleepiness, and stagnant, stale, stuffy air.

The Green Building Standard
LEEDs Requirements

The LEEDs Standard requires ventilation after 800ppm is reached.