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We offer free standard shipping on all orders across the United States, with no minimum purchase.
Orders are processed within 1–2 business days and delivered in 3–5 business days after dispatch (6–10 business days to Alaska, Hawaii and U.S. territories). You will receive a tracking link by email as soon as your order ships.
You have 30 days from delivery to return any unused item in its original condition and packaging for a full refund.
Return shipping is free: email loftwyn.com@gmail.com with your order number and we will send you a prepaid return label. Damaged, defective or incorrect items are always covered.
Your refund is issued to your original payment method within 5–10 business days after we receive your return.
Refresh your Therapure air purifier with the Nispira TPP440 filter replacement. Designed to fit models including TPP440, TPP540, TPP640, TPP640S, and AP200, this premium cartridge is a straightforward upgrade that keeps your device performing as intended. It replaces the TPP440F black casing filter, offering a seamless, drop-in replacement option that supports ongoing maintenance without guesswork.
This cartridge features true HEPA filtration combined with activated carbon. The HEPA layer targets fine particles, while the activated carbon addresses common household odors, helping the purifier maintain steady airflow during daily use. A built-in pre-filter traps visible dust and hair, helping reduce buildup inside the unit between changes.
For best results, consider replacing every 6 months under typical usage. Higher dust loads, pet presence, or frequent purifier use may influence replacement timing. The build quality is designed to meet or exceed leading national-brand standards, with a strong customer satisfaction guarantee.
In busy homes with pets, cooking odors, or seasonal dust, a fresh filter can help preserve airflow and purifier responsiveness. The Nispira cartridge supports an easy maintenance routine, making it simple to stay on top of filter changes during busy seasons.
Note: This is a replacement part for consumer air purifiers and is not a medical device. Always follow the manufacturer’s instructions for installation and replacement.
Q: Which Therapure models is this filter compatible with?
A: Compatible with Therapure TPP440, TPP540, TPP640, TPP640S, and AP200 air purifiers.
Q: How often should I replace the Nispira TPP440 filter?
A: Replace every 6 months under typical use to maintain performance; adjust timing for higher dust or pet environments.
Shipping is free on every order within the United States, with no minimum purchase. Orders are processed within 1–2 business days, and standard delivery takes 3–5 business days after dispatch (6–10 business days to Alaska, Hawaii and U.S. territories). You will receive a tracking link by email as soon as your order ships. We currently ship to U.S. addresses only.
You can return any item within 30 days of delivery for a full refund, as long as it is unused and in its original condition and packaging. Return shipping is free: we send you a prepaid return label, whether the item arrived damaged or defective or simply was not right for your home.
To start a return, email loftwyn.com@gmail.com with your order number. Once we receive your return, your refund is issued to your original payment method within 5–10 business days.
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