A vacuum collection vehicle may include a chassis, a vacuum container supported by the chassis, a vacuum source separated from the vacuum container by an intermediate wall and a filter. The vacuum source is in pneumatic connection with the filter through the intermediate wall. A plurality of discharge conduits extend through the intermediate wall, extend over and above the filter, along the roof of the vacuum container. The plurality of discharge conduits have a plurality of respective outlets at different locations within the interior of the vacuum container for discharging collected material into different collection receptacles. The filter is sandwiched between the intermediate wall and the plurality of discharge conduits.

A method of removing insulation from a building, comprising: providing a vacuum device, a first end of an inlet hose connected to an inlet of the device, and a first end of an exit hose connected to an outlet of the device; providing a bag comprising a sheet of non-porous plastic, heat sealed to form the bag, the bag having inlets spaced out along a top of the bag, and a filter connected to the bag for allowing air to solely escape the bag through the filter; connecting an inlet of the bag to a second end of the exit hose, and operating the vacuum device to suck insulation into the inlet hose, through the vacuum device, and propel the insulation through the exit hose and into the bag so that the insulation flows through the top of the bag in a direction towards a bottom of the bag.

A dust collector with convenient loading and unloading dust collecting barrel includes a base plate fixed on an outer periphery of a bottom of an air guide cylinder, an operation unit whose end is pivotally arranged on the base plate, linking members disposed on said operation unit and connected to a dust collecting barrel lid located under the air guide tube. Accordingly, when a user lifts up the operation unit, the linking members move the dust collecting barrel lid upwards. The upward movement separates the dust collecting barrel lid from the dust collecting barrel, so the dust collecting barrel is easily detached. The action of swinging the operation unit swings down allows the linking members to move the dust collecting barrel lid downwards, so the dust collecting barrel lid closes the dust collecting barrel. Therefore, the user loads and unloads the dust collecting barrel quickly and conveniently.

A dust separator including a top member having a top member having an inlet port arranged to supply dust-laden air and an outlet port arranged to remove clean air, the top member having a lower portion configured as a lip and having a radius which equals diameter of the inlet port, and a dust separator plate, housed within the lip, having a passage with at least one opening arranged to remove the dust from within the top member.

A vacuum tool configured to be removably coupled to hose or wand of a vacuum includes a body including a first end, a second end, and a first longitudinal axis extending between the first end and the second end. The vacuum tool also includes a head coupled to the first end of the body, a connection portion coupled to the second end of the body and configured to couple the body to a hose or wand of a vacuum cleaner, and a brush coupled to the head. The brush includes an elongate support defining a second axis perpendicular to the longitudinal axis of the body and configured to couple the brush to the head, and a plurality of bristles positioned on the elongate support.

A vacuum collection vehicle may include a chassis, a vacuum container supported by the chassis, a vacuum source separated from the vacuum container by an intermediate wall and a filter. The vacuum source is in pneumatic connection with the filter through the intermediate wall. A plurality of discharge conduits extend through the intermediate wall, extend over and above the filter, along the roof of the vacuum container. The plurality of discharge conduits have a plurality of respective outlets at different locations within the interior of the vacuum container for discharging collected material into different collection receptacles. The filter is sandwiched between the intermediate wall and the plurality of discharge conduits.

A vacuum collection vehicle may include a chassis, a vacuum container supported by the chassis, a vacuum source in pneumatic connection with an interior of the vacuum container. A plurality of discharge conduits have a plurality of respective outlets at different locations within the interior of the vacuum container for discharging collected material into different collection receptacles. Inner collection receptacle supports support transmissive flexible and collapsible inner collection receptacles below the outlets. Outer collection receptacle supports support non-transmissive flexible and collapsible outer collection receptacles about and spaced from the transmissive flexible and collapsible inner collection receptacles.

A vacuum collection vehicle may include a chassis, a vacuum container, a filter unit, a first discharge conduit and a second discharge conduit. The filter unit may include a filter housing that supports a filter independent of opposing interior walls. The vehicle may include a storage container supported by the chassis and containing a vacuum source or hose reel. The vehicle may include inner and outer collection receptacle supports for supporting collection receptacles within the vacuum container.

A vacuum tool is configured to be removably coupled to a hose or wand of a vacuum. The vacuum tool comprises a first portion, a second portion, a flexible portion and a mechanical joint. The first portion and the second portion are connected by the flexible portion and coupled by the mechanical joint, so these portions are in fluid communication from various angles. And the mechanical joint comprises a detent and multiple recesses coupled to the detent. As a result, a user can use the vacuum tool in various situations more conveniently by bending the mechanical joint.

A vacuum cleaner includes an air inlet, a filter, a fan, and a main air outlet. The filter has a clean side and an unclean side. An unclean air chamber is formed between the air inlet and the unclean side of the filter. A first air chamber is formed between the clean side of the filter and the fan. An air outlet chamber is formed between the fan and the main air outlet. The upstream end of the air outlet chamber is connected to the first air chamber. An airflow may enter the vacuum cleaner from an external environment via the air inlet under the action of the fan, and sequentially passes through the unclean air chamber, the filter, the first air chamber and the air outlet chamber the main air outlet. The vacuum cleaner may include a self-cleaning air passage and an air supply air passage.