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.

Eliminate unwanted odors with this Levoit HEPA air purifier. The activated charcoal filter removes pungent odor for a fresh-smelling atmosphere, while the filter reminder wheel makes it easy to replace the filters. This Levoit HEPA air purifier has anti-skid pads that enhance stability on the table and is lightweight for portability. 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.

Efficient Air Purification – Refresh Your Air in Minutes: With a high CADR of 130 cfm/220m³/h, our purifier effectively cleans air in large rooms, covering 1008 sq.ft. in one hour, 504 sq.ft. in 30 minutes, 252 sq.ft. in 15 minutes, and 168 sq.ft. in 10 minutes. Compact and lightweight, it’s perfect for rooms of all sizes, including bedrooms, living rooms, offices, basements, family rooms, and kitchens. Powerful 5-Stage Filtration System – Our advanced system includes a Washable Pre-filter, H13 True HEPA Filter, Novel Blue Filter, Honeycomb Activated Carbon Filter, and Cold Catalyst Filter. It captures 99.97% of air pollutants as small as 0.3 microns, such as dust, pollen, smoke, hair, and household odors. Advanced Features – ⁕Sleep Mode ⁕Timer Mode ⁕Filter Replacement Indicator ⁕3 Fan Speed Settings: Conveniently set a timer for 2, 4, 6, or 8 hours. The Filter Replacement Indicator ensures timely filter changes. Adjust to 3 fan speeds for varying environments. The unit’s handle facilitates easy movement, and dual-sided air intake maximizes pollutant capture. The touch screen adds user-friendly control. Quiet Sleep Mode – Minimal Noise, Energy-Efficient: Operate the OKSOU Air Purifier all night with Sleep Mode. Running at the lowest fan speed (only 23dB) with the display off, it cleans your air without disrupting your sleep. Sleep mode is exceptionally energy-saving, making it ideal for quiet and clean ambiance during sleep, study, work, or any peaceful moments.

It combines a compact size with airflow engineering to bring you big performance in a small package. The compact size allows it to sit easily atop a desk or nightstand tilts between horizontal and vertical airflow positions. Select from 2 speed settings to tailor airflow to your needs. Moves air a full 50′ and circulates air around you and will fully circulate the air in smaller rooms.