Air purifier performance test chamber to test the function of the purifier

The air purifier test chamber is used to evaluate the purification efficiency, purification level, purification life and other technical indicators of the air purifier. The following are several test items of the air and planning area performance test chamber to evaluate the purification effect of the air purifier.

Functional test of the air purifier performance test chamber:

1. Environmental condition control The air purifier test chamber has a simulation function of providing certain environmental conditions such as temperature, relative humidity and air exchange rate. When starting the air purifier test chamber, set the temperature, relative humidity and air flow required for the test. environmental conditions. After the system runs stably, in the following 48h, monitor the temperature, relative humidity and ventilation volume in the test chamber near the exit of the test chamber.

2. The air purifier test chamber sealing test adopts the tracer gas decay method. After the simulation chamber is sealed, the ambient temperature of the simulation chamber can be adjusted to 23°C and the relative humidity is 45%. In static mode, inject a certain amount of CO₂ into the air purifier test chamber, and draw a logarithmic-time relationship curve of CO₂ concentration according to the decay of CO₂ concentration in the chamber. The slope of the curve is the leakage amount.

3. The mixing of the simulated cabin can be quantitatively evaluated by the tracer gas decay method, using CO₂ as the tracer gas and measuring it with a CO₂ analyzer.

4. After the operation of the empty cabin is stable, the concentration of some gases in the cabin that may be related to the target can be low enough to ensure that it does not interfere with the normal experiment. During the measurement, the simulation cabin was first cleaned with a large-flow pump overnight, and the ventilation rate was adjusted to 30m³/h, and then the background concentration was monitored at the intermediate sampling point and the outlet sampling point, and pollutants such as formaldehyde and VOCs were quantitatively detected.