News Media

Welltech CO2 Purifier is designed to achieve the good CO2 level of the indoor air quality. It purifies the indoor air to reduce the CO2 level directly. Fresh air supply is not required and no modification of existing HVAC system

New IAQ standard for office and public area required CO2 level < 1000ppm as a standard of good quality environment. Normally, the buidling is using central conditioning air to flush the room air to reduce the CO2 level, but it can only keep the CO2 around at 1500ppm. By using our CO2 purifiers, it can filter the CO2 below 800ppm. The CO2 purifiers itself are able to filter up to 1ppm CO2 at sealed room.  

Standalone, wall mounted or ceiling mounted are available. Different numbers and capacities of the purifiers are used depending on the desirable CO2 level and the facility conditions for the installation.

    Working Principle

    • Filtering

    • Regeneration
    • Air passing the purifier , CO2 will be
    • captured by the catalyst. 
    • During regeneration, high concentrate
    • CO2 will be purged out. 
    • Catalyst life > 10 years.


    • Controller
    • Filtering

    • Regeneration
    • Siemen PLC with LCD display
    • Manual mode
    • Time mode
    • CO2 mode
    • Manual mode 
    • Time mode




    • Office Area
    • Meeting Room
    • Teaching Room
    • Car Park
    • Shopping Mall
    • Market
    • Smoking Room
    • Hospital
    • Pet Clinic
    • Hotel
    • Bus
    • MRT
    • Film storage house (keep CO2 <1 ppm)
    • etc