We have been selling our range of solid robust H class vacuums for some time now. In fact we have sold our whole shipment within two months of receiving them. During that time no vacuums have been returned under warranty or any problems.
What I want to talk about is using vacuums which don’t allow air to pass over the motors.?Firstly an H class vacuum which means high hazard is not like your HEPA vacuum you use at home. Your home vacuum is not designed for high hazard work. HEPA filters come in a range of efficiencies. The ones for home don’t meet the AS/NZS60335.2.69 standard.
Kerstar vacuums don’t allow air to pass over the motor to cool down. this is to prevent contamination into the motor which will then blast any asbestos fibres right into your face through you light weight elasticated hood and right into your hair and down over your skin. Try cleaning the fibres out of your hair. Not going to happen.
As a result of this Proper H class vacuums as defined in the standard listed above (I strongly suggest you purchase this standard) can get hot. This will cause a switch to stop the vacuum pending its cooling period.
How do you prevent this form occurring regularly.
1. Don’t use the vacuum for large pieces of asbestos.
2. Don’t use them for removing stock piled contaminated dusts such as concrete and plasters. These should be cleaned up with manual tools.
3. Change bags regularly and change the middle filter every bag change. You have two. Once you change out the dirty filter use the vacuum to clean the dirty filter which should then be placed in a 200 micron bag.
4. Don’t use the vacuum for long periods of time in hot environments with heavy contamination.
5. Do use the vacuums for clean ups on walls floors and ledges alongside tack rags. Use the brush facility for walls to ensure you get all dusts from the polythene enclosure or other contaminated environments.
6. Dont drag the vacuum around on its wheels as its likely to get caught on the polythene floor tub and tip over possibly dislodging or damaging seals (repeated use).
7. Treat the equipment as a safety device and treat it with care.
8. If it does take a heavy knock take it out of service and get us to check the equipment for you. It is dangerous to your staff and the environment to use faulty equipment such as this. See the new Health and Safety at Work act.
9. Finally we are happy to advise you on any issues you may have with any of your equipment because as you know our staff are current or ex COC holders so we know the industry very well.