BK08 Air Purifier
#66
KOIOS

KOIOS BK08 Air Purifier

Rating

Model: BK08
$49(incl. tax)Amazon price as of 2025-09-02
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Product Overview

The KOIOS BK08 Air Purifier is designed for bedrooms and homes, featuring an H13 True HEPA filter that captures smoke, pollen, dander, and hair. It includes an air quality sensor with a PM2.5 display, a fragrance sponge for essential oils, and a child lock. With 3 fan speeds, a timer, and sleep mode, it's suitable for spaces up to 1200 sq ft. The filter replacement reminder ensures optimal performance.

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Product Specifications

Applicable Area
1200sq ft
CADR (Smoke)
-CFM
CADR (Dust)
-CFM
CADR (Pollen)
-CFM
Filter Type
HEPA
Number of Fan Speeds
3
Noise Level (Min)
15dB
Noise Level (Max)
-dB
Power Consumption
-W
Smart Features
No

Size & Weight

Weight
2.05 Pounds
Hight
10.3 inches
Width
6.9 inches
Depth
6.3 inches

Features

Odor Sensor Function

The product does not explicitly state the presence of an odor sensor function. While it includes an aroma sponge for fragrance, it lacks an automatic odor detection and adjustment system, limiting its ability to respond to sudden smells.

Dust Sensor Function

The product does not explicitly state the presence of a dust sensor function. While it has an air quality sensor, it's unclear whether it specifically detects dust particles and adjusts the purification level accordingly, potentially affecting its efficiency in dusty environments.

PM2.5 Display Function

The PM2.5 display function allows you to visually monitor the air quality in your room, providing real-time data on fine particulate matter levels. This helps you understand the effectiveness of the air purifier and take appropriate actions based on air quality data.

Filter Replacement Indicator Function

The filter replacement indicator function ensures that the air purifier operates at optimal efficiency by reminding you when to replace the filter. This prevents reduced performance due to a clogged filter and maintains consistent air quality over time.

Child Lock Function

The child lock function disables the control panel to prevent unintended changes to the settings, providing peace of mind when the air purifier is placed in areas accessible to children. This prevents accidental operation or setting changes by children or pets.

Sleep Mode Function

The sleep mode function reduces the operating noise and dims the display lights for quiet operation during sleep, making it ideal for use in bedrooms. This ensures a comfortable and undisturbed sleep environment for those sensitive to noise or light.

SHOPSTAFF Rating Score

#66
Ranked #66 out of 100 products in Category
3.5
Overall Rating

The KOIOS BK08 is a budget-friendly air purifier suitable for small to medium-sized rooms. Its compact design and quiet operation make it ideal for bedrooms and offices. However, its long-term durability is uncertain.

Coverage Area (CADR)
3.5
The air purifier covers up to 1200 sq ft, making it suitable for medium-sized rooms. However, without a specified CADR, it's difficult to assess its efficiency in larger spaces. Consider this limitation for larger rooms.
HEPA Filter Quality and Type
4.0
Equipped with an H13 True HEPA filter, it effectively captures particles like smoke, pollen, and dander. However, some customer reviews suggest verifying the 'True HEPA' certification upon receipt to ensure quality.
Pre-filter and Filter Replacement
3.0
The product description lacks details about a pre-filter or washable filter, which are beneficial for extending the HEPA filter's life. Filter replacement is recommended every 3-6 months, adding to the long-term cost of maintenance.
Activated Carbon Filter (Odor Removal)
2.5
While the product description mentions removing odors, it does not explicitly state the presence of an activated carbon filter. The aroma sponge offers an alternative for fragrance, but it may not effectively remove strong odors.
Noise Level
4.5
Operating at a minimum noise level of 15dB, especially in sleep mode, makes it suitable for bedrooms and quiet environments. This ensures minimal disturbance during sleep or work, enhancing user comfort.
Air Quality Sensor and Auto Mode
4.0
The air quality sensor and PM2.5 display provide real-time air quality monitoring, allowing for informed adjustments. The sensor automatically adjusts fan speed, optimizing performance based on air quality levels.
Manufacturer Reliability and Warranty
2.5
KOIOS is a relatively emerging brand, so its long-term reliability and warranty support are less established. Consider this when evaluating the product's long-term value and potential maintenance needs.
Cost Performance
4.0
Priced at $49.99, the air purifier offers good value for its features, including the H13 HEPA filter, air quality sensor, and quiet operation. However, factor in the cost of replacement filters for long-term use.

Brand & Manufacturer Details

KOIOS
KOIOS focuses on providing air purifiers for home, bedroom, and office use, emphasizing air quality monitoring and pollutant removal.

Key Highlights

  • Compact design
  • Quiet operation
  • Aroma fragrance option

Considerations

  • Use only genuine KOIOS filters
  • Replace filter every 3-6 months
  • Avoid placing in humid environments

Recommended For

  • Individuals with allergies
  • Pet owners
  • Those seeking a quiet air purifier

Not Recommended For

  • Those with very large rooms
  • Individuals requiring smart features
  • none in particular

Suitable For

  • Bedrooms
  • Offices
  • Dorm rooms

Not Suitable For

  • Large living rooms
  • Cars
  • Outdoor use

Frequently Asked Questions (FAQ)

Q.I'm concerned about pet odors. Does this air purifier really help with smells?
A.Yes, it does! This air purifier comes with an aroma sponge where you can add a few drops of your favorite essential oil to help disperse a gentle, soothing fragrance and tackle those pet odors. Also, staff confirmation indicates it effectively clears pet odors and leaves the house smelling fresh.
Q.I have allergies and need a purifier that really works. Is this one a true HEPA filter, and will it help with my allergies?
A.The KOIOS BK08 air purifier features a H13 True HEPA filter designed to capture particles like pollen, dander, and dust. Staff confirmation notes improved breathing, reduced itchy eyes, and a less stuffy nose. For serious health concerns like allergies or mold toxicity, ensure the filter has HEPA identification markings to guarantee its filtration level.
Q.Is this air purifier noisy? I need something quiet for my bedroom.
A.No, it's designed to be ultra-quiet, especially in sleep mode, where the noise level drops to as low as 15dB. Staff confirmation mentions it's whisper-quiet and perfect for use in the bedroom while you sleep.
Q.I have a large living room. Will this air purifier be effective in a bigger space?
A.This air purifier is suitable for large rooms up to 1200 square feet. Staff confirmation mentions it's perfect for large rooms and apartments.
Q.How often do I need to replace the filter, and is it easy to do?
A.Generally, the filter should be replaced every 3-6 months, depending on usage and environment. The air purifier has a filter replacement reminder. To ensure optimal performance, use only genuine KOIOS replacement filters.
Q.I'm worried about my kids changing the settings. Does it have a child lock?
A.Yes, this air purifier is equipped with a child lock to prevent settings from being changed.
Q.I live in an area prone to wildfires. Will this help with smoke?
A.Yes, it can help. Staff confirmation from individuals living in rural areas with wildfire risks have found it effective in helping them breathe comfortably when smoke is present.
Q.I'm concerned about the air purifier's certifications and safety.
A.The KOIOS BK08 air purifier is CARB, ETL, DOE, and FCC certified. It produces no ozone or UV, and is built with high-quality, durable materials.

SHOPSTAFF Rating Ranking

#1

BLUEAIR

Blue Signature 112929

$359(incl. tax)Amazon price as of 2025-09-02

Large room air purifier with 7-stage filtration, smart features, and doubles as a table with Swedish-inspired design.

Applicable Area3385 sq ftCADR (Smoke)- CFM
CADR (Dust)- CFMCADR (Pollen)- CFM
Filter TypeActivated CarbonNumber of Fan Speeds-
Noise Level (Min)- dBNoise Level (Max)35 dB
Power Consumption4 WSmart FeaturesYes
Odor Sensor FunctionDust Sensor FunctionPM2.5 Display FunctionFilter Replacement Indicator FunctionChild Lock FunctionSleep Mode Function
4.6Overall Rating
4.8Coverage Area (CADR)
4.7HEPA Filter Quality and Type
4.0Pre-filter and Filter Replacement
4.6Activated Carbon Filter (Odor Removal)
4.7Noise Level
4.9Air Quality Sensor and Auto Mode
4.5Manufacturer Reliability and Warranty
4.2Cost Performance
#2

Coway

AP-2015F Airmega 400 Smart Air Purifier

$366(incl. tax)Amazon price as of 2025-09-02

Smart air purifier with HEPA filter, auto mode, and filter alerts, designed for spaces up to 1,560 sq. ft.

Applicable Area1560 sq ftCADR (Smoke)- CFM
CADR (Dust)- CFMCADR (Pollen)- CFM
Filter TypeTrue HEPA, Active Carbon Filter, Pre-FilterNumber of Fan Speeds-
Noise Level (Min)22 dBNoise Level (Max)52 dB
Power Consumption66 WSmart FeaturesNo
Odor Sensor FunctionDust Sensor FunctionPM2.5 Display FunctionFilter Replacement Indicator FunctionChild Lock FunctionSleep Mode Function
4.5Overall Rating
4.5Coverage Area (CADR)
4.7HEPA Filter Quality and Type
4.3Pre-filter and Filter Replacement
4.5Activated Carbon Filter (Odor Removal)
4.6Noise Level
4.8Air Quality Sensor and Auto Mode
4.3Manufacturer Reliability and Warranty
4.2Cost Performance
#3

Winix

5510 Air Purifier

$179(incl. tax)Amazon price as of 2025-09-02

WINIX 5510 Air Purifier for Home Large Room Up to 1881 Ft², True HEPA, High Deodorization Carbon Filter.

Applicable Area1881 sq ftCADR (Smoke)- CFM
CADR (Dust)- CFMCADR (Pollen)- CFM
Filter TypeHEPA, CarbonNumber of Fan Speeds-
Noise Level (Min)27 dBNoise Level (Max)- dB
Power Consumption65 WSmart FeaturesAmazon Alexa, Google Assistant
Odor Sensor FunctionDust Sensor FunctionPM2.5 Display FunctionFilter Replacement Indicator FunctionChild Lock FunctionSleep Mode Function
4.5Overall Rating
4.5Coverage Area (CADR)
4.7HEPA Filter Quality and Type
4.3Pre-filter and Filter Replacement
4.5Activated Carbon Filter (Odor Removal)
4.6Noise Level
4.8Air Quality Sensor and Auto Mode
4.0Manufacturer Reliability and Warranty
4.3Cost Performance
#4

Winix

5520 Air Purifier

$189(incl. tax)Amazon price as of 2025-09-02

WINIX 5520 Air Purifier for large rooms up to 1882 Ft² with air quality monitor and true HEPA filter.

Applicable Area1881 sq ftCADR (Smoke)- CFM
CADR (Dust)- CFMCADR (Pollen)- CFM
Filter TypeHEPA, CarbonNumber of Fan Speeds-
Noise Level (Min)27 dBNoise Level (Max)- dB
Power Consumption50 WSmart FeaturesWifi
Odor Sensor FunctionDust Sensor FunctionPM2.5 Display FunctionFilter Replacement Indicator FunctionChild Lock FunctionSleep Mode Function
4.5Overall Rating
4.5Coverage Area (CADR)
4.7HEPA Filter Quality and Type
4.3Pre-filter and Filter Replacement
4.5Activated Carbon Filter (Odor Removal)
4.6Noise Level
4.8Air Quality Sensor and Auto Mode
4.0Manufacturer Reliability and Warranty
4.2Cost Performance
#5

LEVOIT

Air Purifiers Vital 200S-P

$159(incl. tax)Amazon price as of 2025-09-02

LEVOIT Air Purifier for large rooms up to 1875 sq ft with washable pre-filter and air quality monitor.

Applicable Area1875 sq ftCADR (Smoke)250 CFM
CADR (Dust)254 CFMCADR (Pollen)289 CFM
Filter Type3-Stage FilterNumber of Fan Speeds-
Noise Level (Min)- dBNoise Level (Max)- dB
Power Consumption- WSmart FeaturesApp
Odor Sensor FunctionDust Sensor FunctionPM2.5 Display FunctionFilter Replacement Indicator FunctionChild Lock FunctionSleep Mode Function
4.4Overall Rating
4.3Coverage Area (CADR)
4.5HEPA Filter Quality and Type
4.3Pre-filter and Filter Replacement
4.3Activated Carbon Filter (Odor Removal)
4.5Noise Level
4.7Air Quality Sensor and Auto Mode
4.0Manufacturer Reliability and Warranty
4.3Cost Performance