Best Vac EVER made 




The SQ-10 is extremely versitile, powerful, and --quiet--. It's suitable for a library reading room. It really is that quiet.It's also capable of mil-spec performance with the optional genuine HEPA filter (be careful not to buy all the hepa imitators on the market - most of them are junk anyways)
The hose can be automatically grounded for ESD protection if anti-static hose is used -- this is NOT the factory default, but the ground strap is built into the unit at the hose inlet so if you do buy an esd hose, you're all set - this prevents the vac from sparking inside heavy contamination areas due to movement of material through the hose. This is required for datacenter use - and most vacs neglect it in the design.
This MODEL (the drywaller) is intended strictly for drywall installers or people who need to inhale lots of fine powder. The filter can be brushed while it's in use through the top of the unit to clean drywall dust off. This is done with a brush connected to a plunger that penetrates the case.
While this is a great feature for drywall installers - most people will be better served buying bags and using the standard model without the brush.
With 120CFM of airflow and over 100" of H20 lift, it is suitable for almost any use and features a 2-stage fan - very uncommon to find as most cheap units opt for single stage fans which do not work well with liquid pickup.
The vac also features a convenience outlet that is switched on with the unit - for use with power tools that produce dust - it's suitable for sanders and the like, but not high current tools like a skillsaw since your tool shares the power cord with the vac motor. An electrician can re-wire the outlet to be always on if desired. A high quality terminal block is under the hood for this purpose.
German ergonomics are enforced with no sharp edges, stainless steel parts, and a low center of gravity to prevent tip-overs - it's low and squat with high quality wheels that track over cords, hoses, dirt, rocks, plywood, bascially any off-road vac course you can dream up. If you've ever had a cheap vac tip over when the 1" castors hit an extension cord on the floor and then shut off, you know how fustrating tipovers can be.
The only disadvantage is that YOU must tip it over to empty liquids - the 15 and 20 gallon size models feature drain ports and use the same quiet motor as this unit. They are more suited to liquid use for that reason. With 70 lbs of water in it - it's very hard to tip over and drain.
Also note that this is a METRIC unit - the hose is compatible with US 1-1/2" accessories, but not the more common 1-1/4" accessories. It is also compatible with the LINDHAUS power brush for carpets, but purchase the METRIC version.
With old-wolrd german craftsmanship, this vac will last a lifetime if taken care of. It should replace 10+ of the hardware store variety, and do a better job cleaning.
One last thing - about Fleece 




The manufacturer calls the filter FLEECE - it is not what americans call FLEECE - we refer to the material as "GORE-TEX" in america, but it got messed up in translation from German to English, and FLEECE was printed in the literature. You are getting a GORE-TEX filter with this unit and will be pleasantly surprised.