️ "Sealed" HEPA vacuums: While a HEPA filter on a vacuum’s exhaust is a must for trapping irritating particles, it’s only effective if most of the air coming ... on the design of the ...

After 30 to 60 seconds, turn off the vacuum. If your machine has a reverse air-flow button ... be used in prototyping and in the iterative design development of a new product?

The newly developed vacuum ... air is suctioned near the leading edge to efficiently suppress crossflow instability. In the rear section of the wing, the design maintains smooth airflow (laminar ...

At 16 pounds, this vacuum is heavy, making it difficult to carry up and down the stairs, but it was still easily maneuverable ...