Air Purifier for Large Rooms with HEPA Filter and PM2.5 Sensor
Air Purifier for Large Rooms with HEPA Filter and PM2.5 Sensor
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Precision Air Monitoring for Large Spaces
This air purifier is built to handle spaces up to 1400 sq ft, making it suitable for living rooms, bedrooms, and open-plan areas. It includes an integrated PM2.5 sensor that continuously measures airborne particle levels and displays the data in real time. A visual indicator shows air condition levels for quick monitor during use. Its internal airflow system cycles air through the filtration chamber at a steady rate.

Automated Filtration with Multi-stage System
The purifier uses a 3-stage filtration structure that captures common airborne particles such as dust, pollen, smoke, and pet dander. The HEPA filter layer works alongside pre-filter and secondary filtration layers to trap particles at different sizes. In auto mode, the system adjusts fan speed based on detected air conditions, increasing airflow when particle levels rise. The unit circulates indoor air through repeated cycles to maintain airflow in large spaces. Users can select from three fan speed settings using the button control panel. The display provides ongoing feedback so adjustments can be made when needed.

Low-noise Operation
This unit operates at a minimum noise level of 20 dB in sleep mode, making it suitable for nighttime use in bedrooms. The control panel uses clearly labeled buttons for adjusting fan speed, activating auto mode, and enabling child lock. The child lock function helps prevent unintended changes during operation. The filter requires replacement every 3 to 6 months depending on usage.
Product Benefits
- Real-Time Monitoring: PM2.5 sensor displays current airborne particle levels during operation.
- Automatic Fan Control: Auto mode adjusts airflow speed based on detected air conditions.
- Multi-Stage Filtration: 3-stage HEPA system captures dust, pollen, smoke, and pet dander.
- Low-Noise Performance: Sleep mode operates at 20 dB for reduced sound output.
- Simple Maintenance: Replaceable filter system requires no washing during regular use.
Specifications:
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Material: ABS plastic housing
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Dimensions: 18 x 14 x 7 inches
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Weight: 6.4 lb
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Power Source: Plug-in electric
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Coverage Area: Up to 1400 sq ft
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Noise Level: 20 dB (sleep mode)
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Filter Type: HEPA 3-stage filtration system
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Control Type: Button control panel
- Special Features: PM2.5 sensor, real-time display, auto mode, child lock
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Shipping Policy
Shipping Policy
- Order Cutoff Time: 5:00 p.m. EST
- Order Processing Time: 1-2 business days (Monday–Friday). Once processing is complete, your order will be handed over to one of our shipping partners.
- Transit Time: 4–7 business days (Monday–Friday).
- Estimated Total Delivery Time: 5–9 business days from the date your order is placed.
Our Shipping Policy.
Refund & Return Policy
Refund & Return Policy
- Return Window: You have 30 days from the day you receive your order to return items.
- Condition: Items must be unused, in their original condition, and returned with the original packaging.
- Straightforward Returns: Returning items to us is easy and our client support team will assist you.
- Territorial scope: This Return and refund policy applies to purchases in the United States.
- No restocking fees.
Our Refund Policy.
FAQ
Is shipping free ?
Is shipping free ?
Shipping is completely free for all orders delivered to the USA, no minimum purchase is required.
How long is the delivery time?
How long is the delivery time?
We provide free returns for any defective, damaged, or incorrect items. For returns due to a change of mind or sizing issues, the customer is responsible for the return shipping fees.
Is delivery tracked?
Is delivery tracked?
Yes, delivery is tracked. You’ll receive a tracking link by email after placing your order.
Is the return shipping free?
Is the return shipping free?
For Defective Products: No cost to the customer. This applies when the product is wrong, damaged by the carrier, or defective in any other way.
For Customer Remorse (Change of Mind): The actual cost of return delivery will be charged to the customer. This applies when the customer purchases the wrong product, the item does not fit, or they no longer want the item. You will be responsible for the shipping costs for returning your item. Shipping costs are non-refundable.
How do I start return process?
How do I start return process?
Email support@buildershope.com within 30 days with your order number, reason for return, and photos if the item is defective.
We’ll confirm eligibility and send mail-back instructions.
Do you accept exchanges?
Do you accept exchanges?
Yes, send an email to support@buildershope.com with the details of the replacement item. Exchanges are for items in excellent condition, and they must be requested within 30 days of delivery. We will guide you through the next steps.

