I have a suggestion about a feature that might make your device more attractive to buyers.
Although unflued gas heaters are illegal in many jurisdictions, there are still many in use, and they emit carbon monoxide causing death in some cases.
Even some vented gas heaters can emit carbon monoxide.
There are low cost carbon monoxide detectors, and if you could incorporate one in your purifier that might be a bonus. Alternatively, you could provide one as an incentive bonus when you bring your product to market. The alarm warns residents to ventilate the home.
Walter
Although unflued gas heaters are illegal in many jurisdictions, there are still many in use, and they emit carbon monoxide causing death in some cases.
Even some vented gas heaters can emit carbon monoxide.
There are low cost carbon monoxide detectors, and if you could incorporate one in your purifier that might be a bonus. Alternatively, you could provide one as an incentive bonus when you bring your product to market. The alarm warns residents to ventilate the home.
Walter