The Rn4 features an electronically commutated (EC) motor. Inherently efficient and operationally stable at full and reduced speeds, the EC motor arms the radon professional with installation methods not previously practical. Located in the wiring box, an integral speed control potentiometer can be used to “dial in” the fan speed necessary to achieve either the required sub-slab depressurization or required system air flow rate. For demand-controlled systems, the potentiometer can be removed from the wiring terminal block to accommodate an externally-provided 0-10Vdc speed command. The Rn4 series fans are constructed with UL certified, UV protected Polycarbonate material that are vibration welded for 100% leak-proof housing construction. Totally enclosed motors are designed with extra moisture protection for radon application. The Rn4 also features a housing produced via a vibration welding process. Without relying on fasteners or sealant, the process results in a fused seam that is strong, permanent and inherently air tight.

Clean up the air in your home with this Levoit personal desktop air purifier. The three-stage filtration system with a HEPA filter removes allergens, dust, odors and smoke, while the discreet design with quiet fans maintains the serene atmosphere in your home. This Levoit personal desktop air purifier has a three-position fan speed dial for controlling ventilation, and the powerful 35W design is effective in rooms of up to 161 sq. ft. Up to 161 sq. ft. purification capacity To help keep the air clean and fresh. True HEPA filter Captures 99.97% of particles, including pollen, mold, pet dander and dust. Micron mesh prefilter and washable deodorizing filter help remove irritants and odors from the air. Know when to change a filter Recommend to replace filter every 6-8 months. A light indicator turns on when the filter needs to be replaced. Variable speed selector Allows you to easily choose 3 fan speeds for custom operation. Silent Operation Filters the air as quietly as 32dB at the lowest speed for a restful and soothing indoor environment, helping you sleep deeply.

Shark Performance Plus Lift-Away Upright Vacuum with Odor Neutralizer Shark has take its iconic Lift-Away series and loaded it with even more deep-cleaning innovation–from an all-new nozzle to Odor Neutralizer Technology.

Air-borne dust particulates can dirty up a woodworkers workshop and harm a healthy respiratory system. The WEN 3-Speed Remote-Controlled Air Filtration System eradicates these contaminants by catching them in one of the two easily cleanable filters while circulating the air in your work area. The powerful 1/6 HP motor leaves no stone unturned collecting every contaminant in its path. Quiet system creates 50 to 60 dB of noise and is controllable up to 26 ft. away with the included remote. The lightweight design weighs in at a mere 31 lbs. combine this with the attached carrying handle and eyebolts for easy mobility mounting and installation. The WEN Air Filtration System collects and releases the air in your workshop after filtering it through both a 5-micron outer filter and a 1-micron inner filter. Easily switch between three speeds of 300 350 and 400 CFM depending on what the situation calls for. With the time feature you dont even have to worry about turning off your machine. Simply set the timer and the machine will turn off on its own once the time runs out allowing you to easily give your workshop a thorough cleanse at the end of a day of woodworking without having to be present.