MetroVac METRO Data Vac Pro MDV-1BAC Portable Vacuum Cleaner

I use this as a blower for cleaning out computer cases. The canister is fairly heavy metal. The power is very strong and this does a fabulous job - saving me the cost and bitterant hazards of canned air!

I've had this for a few weeks, and I use it only for blowing dust out of my computer and inside a roomba dust bin.I compared this to a standard con-air hair dryer, and in the datavac there is slightly more pressure in two of the nozzles (the eardrop looking one and the long crevice tool). Although the pressure is not THAT different. If you were to develop a nozzle for a hairdry that constricts the air, it probably would be a similar flow.The datavac is also slightly more powerful than the air sprays I used. I also like it better since it doesn't leave that residue on your electronics!I was hoping for a little more power, but I'd have to fork over another 50-100 dollars for the higher power model. Still, it does the job, and it satisfactorily replaces aerosol cans.