Products in our articles are independently selected and featured editorially. If you make a purchase using these links we may earn commission. Your bedroom is the best place to keep an air filter because that’s where you spend most of your time. Both Lasko Box Fan these air purifiers have been engineered with almost similar features and performance levels. Alen 45i is ideal for smaller rooms, while 75i works best in larger rooms. In my opinion, there are hardly any differences and both win in their own ways.
While the new flagship 45i and 75i models achieved the super quiet operation , the Classic doesn’t share the same noise profile. Due to larger coverage, Alen BreatheSmart is considered a large room air purifier. In short, the Classic model has great filters that are available at a low long-term cost because you only need one per year, instead of five per year. Anti-microbial filter that removes mold and bacteria, in addition to other allergens and dust. Blue, yellow, & red air quality light lets you know it’s working.
I went for the ‘Fresh’ model which contains a medical-grade H13 True HEPA filter plus an activated carbon filter for added protection against VOCs and smoke. The capacitive control panel allows you to easily cycle through the settings. After conducting air quality Lasko Box Fan studies, our experts have found the air quality in a room can returned to pre-cleaned levels only two hours after turning off an air purifier. Based on these findings, we recommend you run your air purifier 24/7 to maintain the cleanest air possible.
Are you looking for protection from allergies or just need to freshen up the air? A quick look at the specs for the purifier should tell you what particles it can effectively remove from the air. Again, a HEPA filter is going to do the trick for most common irritants and odors, including pet hair and dust.
Changing your air filter regularly will maintain clean air and avoid any compromise in the quality of air. The Alen BreatheSmart 45i is equipped with a powerful motor and fan that generates an impressive airflow. Ideal for larger rooms, bedrooms, living rooms, and kitchens. 45i circulates clean air indoors by filtering 800 SqFt of air 2x an hour. 45i is designed for comfort and operates at whisper-quiet volumes. In fact, 45i has been validated by SleepScore Labs to improve sleep in allergy sufferers up to 25%.
That’s actually the most important part of any air purifier; filters are the very thing that capture airborne pollutants and eliminate them from the air circulation. Alen BreatheSmart 75i is advertised as capable of cleaning rooms up to 1,300 square feet in size every 30 minutes. I covered that topic at the ACH recommendations page, where you can take a look at the table with minimum required ACH as well as calculate the number yourself using our calculator. Breathing healthy and clear air is excellent, but most of the time, it comes with the price in the form of an annoying sound that disturbs the peace. The low-speed fan of Alen Breathesmart 75i allows the purifier to emit a low noise at 25 decibels, which is almost as soft as a whisper.
HEPA filters are certified to trap particulate matter as small as 0.3 microns, which covers dust, pollen and most bacteria. Some purifiers boast a medical-grade Hyper-HEPA filter that will go down to 0.003 microns — enough to pick smoke out of the air. The ability to move air throughout 1100 sf within 30 minutes is a good sign of solid performance. An air purifier with poor fan speed would struggle to clean the air simply due to the inability to process it effectively.