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Kelvin maskMade in Hong Kong, the factory is located in Sheung Shui, New Territories

What is a clean room??

The clean room is a room specially designed to control the particulates, harmful air, bacteria, etc. in the air, as well as the temperature, humidity, and pressure within a certain range.


To build a dust-free workshop, the ceiling and walls should be paved with aluminum alloy color steel plates, and epoxy resin should be laid on the ground to achieve dust-proof and anti-static effects.


In addition, a fresh air intake system must be built in the clean room, and a positive pressure space where the indoor pressure is higher than the outdoor pressure should be established so that the outdoor stagnation will not be sucked into the indoor space.

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