Price of electricity obtained from U.S. Energy Information Administration - Monthly Electric Power for California Nov. 2012 - All Sectors Filter costs and replacement recommendations taken from manufacturer website. Based on 24/7 operation on highest speed for a year. Noise level on highest fan speed Noise levels obtained from manufacturer and consumer allergy websites. Noise level on lowest fan speed Noise level for Idylis on low speed is unavailable. Power consumption on highest fan speed Power consumption levels obtained from manufacturer and consumer allergy websites. Power consumption on lowest fan speed Power consumption levels obtained from manufacturer and consumer allergy websites.Airfree Lotus Air Purifier Airfree® Lotus air purifier combines a distinctive design with exclusive technology, allowing a change of colors and the opening of the device’s petals all while gradually purifying 650 sq ft from germs, viruses, bacteria, dust mites, mold spores, dander, pollens, ozone and numerous other airborne contaminants.

Volume 89, March 2015, Pages 254–266 Optimization of sirocco fan blade to reduce noise of air purifier using a metamodel and evolutionary algorithma b c d Received 29 March 2014, Revised 3 October 2014, Accepted 7 October 2014, Available online 27 October 2014In this study, the flow inside an air purifier was visualized using computational fluid dynamics (CFD), and the noise caused by airflow was predicted using computational aero-acoustics (CAA). air purifier hospitals useWith the obtained results, the causes of blade passage frequency (BPF) noise and turbulent flow noise that dominate the operating noise of the air purifier were investigated. airbrush paint cleanersThe relationship between design parameters and BPF noise was subsequently derived by the kriging metamodel, and the optimum fan blade dimensions that minimize operating noise were acquired by an evolutionary algorithm (EA). air cleaner model 2200

The relationship between BPF noise and design parameters mentioned was intended to be used as a design guide during the early stage of fan blade design. In addition, in this study was designed to be able to estimate the origin of noise intuitively by visualizing internal flow. Lastly, the low-noise performance of the air purifier was verified through analytical and experimental methods, including the fabrication and testing of a physical mockup. Compared to the initial model, the fan blade operating noise decreased by 4.5 dB(A) in the main range.Keywords; ; ; ; ; On all orders over $75 LEARN MORE FREE SHIPPING on this item LEARN MORE Item usually ships within 24 hours. Not available in AK or HI. HEPA 5 level filtration captures up to 99.97% of airborne allergens, smoke, mold spores, and pet dander Germicidal UV light kills viruses and bacteria to deliver germ free fresh air Filter also captures odor causing particles that may come from smoke, garbage, pets, etc.

Included foam filter is washable, extending the life of the HEPA Filter 3 Speed Control with low noise setting for continuously quiet operation Details Specifications Warranty Reviews FAQs The Penguin Personal Air Purifier features a 5 Level Filtration System, including a Germicidal UV Light, which helps remove airborne allergens, bacteria, viruses, and germs. The True HEPA Filter captures up to 99.97% of airborne dust and pollen as small as 0.3 microns from air passing though the filter. The filter also helps reduce smoke, mold spores and pet dander. It includes an Active carbon filter and a photo-catalyst Filter which eliminates airborne odors from smoke, garbage, pets, etc. to provide you with fresh smelling, clean air all the time.The Penguin Personal Air Purifier has a 3 Speed Control with low noise setting for continuous quiet operation. The filters are easy to change and washable, which makes them last a long time – saving you money in the long run. An air purifier of such high quality as this is a must have for anyone living with any respiratory problem.

The cute penguin shape of this air purifier makes it a perfect fit for any child's bedroom, but this unit is not a toy – adult supervision is required.What's in the box: penguin purifier, particle filter, photo-catalyst filter, HEPA filter, UV light, instructions. Our Customers Say It Best of respondents would recommend this to a friend. Personal Cool Mist HumidifierIn this post, we’ll share with you our review of the Blueair Classic model of air purifiers. What you’ll find with this line of Blueair cleaners is that they offer several advantages that set them apart from many other manufacturer products. In fact, Blueair works very hard to exceed industry standards and create air purifiers that offer unparalleled performance. Their goal is to create the best air purification solutions that ensure you breathe air that’s as fresh and clean as nature intended. We highly recommend these air cleaners for people with allergies, asthma and other respiratory problems who want to breathe the cleanest, most purified air.

In this review, we first explain how each of the Blueair models are the same and then point out key differences between each product. (You can compare air purifiers from other manufacturers here.) The Blueair Classic series consists of four model numbers: What you’ll find with these models is that they share five excellent features in common. Regardless of the model number you choose, you’ll enjoy these aspects listed below. All Blueair Classic air purifiers contain HEPASilent® technology. This feature is an enhanced version of the High Efficiency Particulate Arrestance (HEPA) filter that’s used in competitor products. The HEPASilent® technology is unique because it produces the highest rate of clean air delivery along with the lowest levels of noise. Each model captures 99.97% of airborne particles down to 0.1 micron in size and is whisper silent. Standard HEPA filters are only capable of capturing particles as small as 0.3 microns and do produce louder noise.

Each Blueair air purifier is backed with the Energy Star rating. This ensures that every unit meets the guidelines set by the U.S. Environmental Protection Agency and the Department of Energy. The average cost to operate a Blueair air purifier is equivalent to the energy required to run a single household light bulb. We could dedicate a whole article outlining the various awards and special mentions that Blueair has received for their air purifying products, but to save time we’ve listed the top five acknowledgements below. No matter which Blueair product you choose: 203, 403, 503 or 603, you’re getting an air cleaning product that has an award winning design. A final aspect that you’ll find through the Blueair Classic series is that each model is independently verified by the Association of Home Appliance manufacturers (AHAM) and exceeds the Clean Air Delivery Rate (CADR) requirements. This ensures that you’re getting a top-of-the-line air purifier that’s dedicated to producing the cleanest air possible.