Sound Levels in Operation
Purex supplies industrial grade fume extractors which offer a balance of high performance and value.
The extractors are designed to produce high velocity airflow at elevated pressures. This means that the impeller blades, bearings, shafts, and magnets within the blower must spin at incredible speeds, resulting in acoustic noise and mechanical vibration.
In addition, the high velocity airflow creates noise as it travels through inlets, ducts/hoses and cabinet. These characteristics are inherent to these types of blowers/equipment and is normal, given the high output requirements.
The noise level of each blower may vary due to minor variances in manufacturing, resonance frequencies of the hose, cabinet and/or blower casing. However, the sound level should never exceed 85 dB when the extractor is operating normally, ie. with all filters in place, hose connected, a smooth inlet, and an adequate inlet diameter.
Noise levels can also vary due to the location of the extractor or inlet. Environments with hard, smooth surfaces reflect noise, whereas softer surfaces such as carpet absorb noise.
Chau Vo
Product Development Director
