KOIOS Air Purifiers for Home Bedroom Large Room Up to 2500 sq. ft, H13 HEPA Air Purifier with Washable Filter, PM2.5 AQI, 20dB Sleep Mode for Pet, Dander, Dust, Pollen, Smoke, Odors, AP2503, White — Open-Box, 9% Off

Powerful Large-space Purification Capacity: The KOIOS air purifier is engineered specifically for use in large areas of your home. As a powerful air purifiers for home, it delivers an effective airflow of 2,500 square feet per hour, rapidly circulating and cleaning the air in living rooms, large bedrooms, garages, offices, classrooms, gyms, and dance studios. The hepa air purifier brings fresh air into your home and refreshing every corner of the space.

PM2.5 Real-Time AQI + Auto Mode: This air purifier large room features a PM2.5 sensor, a large display and a 4-color indicator, giving you immediate air quality data so you always know indoor conditions. Auto mode adjusts fan speed automatically based on live readings — less guesswork, more confidence. Whether cooking in the kitchen, playing with pets, or putting kids to sleep — Auto mode detects pollution and adjusts speed instantly.

Washable Pre-filter & Filter Replacement Indicator: The washable pre-filter can be rinsed to cut replacement filter costs. This true H13 HEPA air purifier with activated carbon filter targets dust, dander, smoke, and smells. If you need air purifiers for home pets or to reduce secondhand smoke, KOIOS AP2503 air purifier is your ideal choice. Note: the filter change light reminds you every 3-6 months, then you could search for B0GTPP3KBR to get genuine filters.

Sleep Mode, Display Off, 1-12h Timer Setting: The air purifiers for bedroom use feature ultra-quiet operation and customizable controls. With a one-touch Sleep mode, noise drops to as low as 20 dB, perfect for light sleepers and nursery use. The 4-speed fan, "Display Off" feature, and 1–12 hour timer setting give you complete control over operation. Put your child to bed, tap Sleep mode, and set the timer for 8 hours. The air cleaner runs quietly through the night and auto-off after wake-up. Clean sleep air, zero disturbance.

Thoughtful, Easy-Use Design & Safety Certifications: Every detail is designed for real-life homes. Child Lock, anti-skid pads + rounded corners are friendly for kids, while the removable aroma clip comes with 5 extra pads for a touch of essential oils. A hidden carry handle makes it easy to move between rooms. Quick-swap filter access and an easy control panel make maintenance effortless. Beyond design, this air purifiers for home meet FCC, EPA, CARB, and DOE standards for safety and energy compliance — so you can breathe easy.

Worth Repeating: Better material, easier maintenance. The hepa air purifier's washable pre-filter uses high-quality nylon. Unlike sponge or felt that’s hard to clean, easy to deform, and slow to dry, this nylon filter can be rinsed and brushed repeatedly — it holds its shape, dries almost instantly, and clicks in with one touch. It extends HEPA and Activated Carbon filter life, cuts replacement costs, and makes maintenance a breeze. If you want quick cleaning, easy installation, and lasting value, this is it.

The KOIOS AP2503 air purifier is designed for home large rooms up to 2500 square feet, delivering powerful and efficient air circulation at 2500 square feet per hour. Whether you need cleaner air in your living room, large bedroom, garage, office, classroom, gym, or dance studio, this unit brings fresh air into every corner of your space. Equipped with a true H13 HEPA filter and an activated carbon filter, the AP2503 effectively targets dust, pet dander, pollen, smoke, and odors. The washable nylon pre-filter can be rinsed to help reduce replacement costs, and the filter change light reminds you every 3 to 6 months when it is time to replace the filter. For genuine replacements, search B0GTPP3KBR on amazon. The built-in pm2.5 sensor with a large display and four-color indicator gives you real-time air quality readings. In auto mode, the fan speed adjusts automatically based on live air quality data. Whether you are cooking in the kitchen, playing with pets, or putting kids to sleep, the purifier detects pollution and adjusts instantly. For nighttime use, the one-touch sleep mode lowers noise to as low as 20 db, making it ideal for light sleepers and nurseries. You can also turn off the display with the tap of a button, and set the 1 to 12 hour timer for complete control. Imagine putting your child to bed, tapping sleep mode, and setting the timer for 8 hours — the air cleaner runs quietly through the night and auto-off after wake-up, giving you clean sleep air with zero disturbance. Every detail of the AP2503 is designed for real-life homes. The child lock, anti-skid pads, and rounded corners make it safe around kids. The removable aroma clip comes with five extra pads for a touch of essential oils. A hidden carry handle makes it easy to move between rooms, and quick-swap filter access with an easy control panel keeps maintenance effortless. Beyond design, the KOIOS AP2503 meets fcc, epa, carb, and doe standards for safety and energy compliance. This indoor air purifier lets you breathe easy knowing it satisfies strict safety and energy regulations. It’s worth emphasizing again: KOIOS AP2503 air purifier features a premium nylon-based, washable pre-filter. Unlike ordinary sponge or felt materials that require tedious adhesive application, are difficult to clean, prone to deformation, and take a long time to dry, this nylon pre-filter can be rinsed and brushed under running water many times. It holds its shape well, dries almost instantly, and is ready to use again with no wait time. Combined with a one-click snap-on installation, cleaning is quick and effortless. This not only effectively extends the life of the HEPA and Activated Carbon composite filter and reduces replacement costs, but also makes routine maintenance simple and efficient. If you value fast cleaning, easy installation, and long-term value, this product truly delivers—well worth the investment.