- Product label: Sold out
- Product label: Discontinued
Lossnay LGH-F1200RVX3-E Replacement ERV Core - Set of 4 (Discontinued)
Product Details
The Lossnay ERV Core is a heat exchanger that uses a diaphragm to recover heat from outgoing air and transfer it to incoming air. This process is integral to the system's function and helps reduce energy costs and improve indoor air quality. Each system has at least two cores that require routine maintenance and replacement.
Maintenance & Care: The Lossnay Core must be cleaned once every two years (annually if possible). Increase the cleaning frequency if exposed to excessive dust or pollutants. Use a vacuum cleaner with a soft brush attachment to gently remove dust and dirt from the exposed surfaces of the Lossnay cores. DO NOT use the hard nozzle of a vacuum cleaner, or wash the Cores in water. This will cause irreparable damage to your core, requiring replacement. The Lossnay Core has a typical service life of up to 10 years with routine maintenance and filter replacement.

At HEPAFilterSales.com, we specialize in providing exclusive OEM filter bundles, ensuring you get the right fit for your system with the best value. Regular replacement helps keep your Mitsubishi Lossnay system operating efficiently, reducing dust buildup and maintaining a healthy indoor environment. Maintain your Mitsubishi Lossnay system with trusted OEM replacement filters and experience cleaner, fresher air.
Recommended Inspection & Professional Maintenance
After several years of operation, the performance of your system may decline due to natural wear. It is recommended to have a professional inspect and maintain your system to address the following:
- Filter deterioration leading to dust entry.
- Unusual noise or vibration due to the motor reaching the end of its service life.
- Air leakage caused by the Lossnay core reaching its service limit.
Consumable Components
The following parts are subject to wear and may require replacement over time: motor, supply air filter, exhaust air filter, lossnay core, circuit board, and thermostat.
For professional servicing, contact your authorized service provider. If you have any questions or require specialty replacement parts, please contact us - we're real people, here to help!
Returns & Exchanges
We want every order to go smoothly, and if something is not right we want to make it right. At the same time, for the health and safety of everyone — our team, other customers, and the facilities these products are used in — we cannot resell opened or used filtration and air quality products. Our policy below is built around that reality. If you have any questions about a product before ordering, please reach out — we would rather help you get the right thing the first time than deal with a return after the fact.
Eligibility
Opened or used items are not eligible for return or refund under any circumstances. Products designated as Special Order, Clearance, Discontinued, or Final Sale are also not eligible for return or exchange. All other returns require items to be unused, in new condition, and in original packaging with all accessories and documentation included.
30-Day Return Policy
Unopened, unused items may be returned within 30 days of delivery, subject to a restocking fee of at least 25% of the purchase price. Original shipping costs are not refunded. Return shipping is the buyer's responsibility. A Return Material Authorization (RMA) number is required before shipping any return — contact us first at Help@HEPAFilterSales.com to receive return instructions. Returns sent without an RMA may be refused.
Refunds are processed within 10 business days of receiving and inspecting the returned item. You will be notified by email when your refund has been issued.
Exchanges — Standard Restocking Charge Waived
Exchanges for unopened, unused items are not subject to a restocking fee. Contact us at Help@HEPAFilterSales.com before returning any item to arrange an exchange and receive expert advice on the correct solution.
Order Cancellations
Contact us immediately if you need to cancel an order. Not all orders can be cancelled once placed — freight and special-order items in particular may ship before a cancellation can be processed.
Damaged or Incorrect Items
If your order arrives damaged, note the damage with the delivery carrier at time of delivery, photograph the damage, and email us within 48 hours of delivery at Help@HEPAFilterSales.com. We will arrange return shipping and send a replacement at no additional cost to you.
If you receive an incorrect item (compared to what was ordered), email us your order number and a description of the issue. We will arrange return shipping and send the correct item at no cost to you.
Defective Items
Suspected product defects and performance issues are warranty matters handled directly by the manufacturer — they are not eligible for return or return shipping reimbursement from HEPA Filter Sales, LLC. Contact us and we will provide manufacturer contact information to assist with a warranty claim.
For More Information, please take a moment to review our governing policies:
Returns & Refunds Policy
Shipping Policy
Purchase Options & Subscription Policy