top of page
design & technology
Kaleidoscope Lab Award
Innovation Award Top 5
Red dot design Award
We are one-stop air quality products and monitoring service provider.
As listed air quality consultant in HK Environment Protection Department, we deliver an optimal combination of patented air purification products and monitoring services that are best suited to commercial customers' respective needs and issues.
Metal filter for HVAC system in air duct and fancoil, allowing simple installation at zero extra construction cost.
Indoor ambience monitoring
Design and deliver integrated real-time air quality monitoring systems.
Eliminate dangerous particles you can't see
Our Client list speaks for itself
Get A-Sa's new articles and blogs in your mailbox.
bottom of page