The following statement is taken from the front page of HSE Coshh SR 13 the guide document to help Nail Bars and Salons comply with the legal requirements in The control of substances hazardous to health regulations act 2002, as amended, to control exposure and protect workers health.
"Provide an extractor hood or a downdraught table. See illustrations: ■ you need a downdraught around 1 metre per second into the table; or ■ you need an inlet air speed around 0.5 metres per second into the extractor hood. ✓ The client’s nails must be over the downdraught or close to the hood. ✓ Filter air for return to the salon or for discharge outside. Caution: ‘dust masks’ are not acceptable as a control.
The "pro systems" mentioned in other posts have a rate of "downdraught" of 100m3 per hour according to their own specification sheets that can be downloaded from their website. (below)
"Technical data Height, mm 440 Width, mm 420 Depth, mm 200 Weight, kg 8 Suction capacity, m3/h 100"
This rate of airflow does not, anywhere near, meet the required minimum of 1 metre per second for downdraught suction, and is not even a fraction of the required airflow suction of an overhead unit of 0.5 metres per second. "Pro systems" that do not comply with HSE Coshh SR 13, and are very expensive, would be considered unsuitable regardless of the "manufacturing pedigree".
