Kosmen's Warranty Policy

1. Warranty policy - For customer peace of mind

30 Day One-to-One Exchange Warranty

Within 30 days of the purchase date, if the product has a technical defect originating from the manufacturer, Kosmen will provide a 100% product replacement for all product lines.

Note: Customers are required to retain the product’s original packaging and all included accessories for the first 30 days to be eligible for the one-to-one exchange policy.

Standard Warranty

• All Kosmen products are covered by a 24-month warranty from the date of purchase.
• The compressor in dehumidifiers is covered under an extended warranty of up to 36 months

Free Maintenance Service

For industrial dehumidifiers, Kosmen offers scheduled maintenance once per year, up to two times during the warranty period.

Note: Filters of air purifiers are not included under the warranty coverage.

Warranty policy and benefits when purchasing Kosmen products

2. Warranty Eligibility Conditions

To qualify for free warranty service, customers must ensure that:

• The product is still within the specified warranty period.
• The issue is a technical defect caused by the manufacturer.
• The warranty seal and serial number must remain intact — not torn, faded, altered, or overlaid.

If warranty service is required, please contact a Kosmen service center or an authorized technical team. In the event that the product must be sent to the service center, Kosmen will cover all shipping costs.

3. Warranty Exclusions

While we strive to provide the best support, Kosmen cannot offer free warranty service in the following cases:

• The warranty seal is damaged, tampered with, missing the serial number, or altered in any way.
• Missing or modified warranty information, such as absence of the seller’s company name.
• Damage caused by force majeure events such as natural disasters, fire, or flooding.
• Damage incurred during transportation or handling performed by the buyer.
• Malfunction resulting from misuse or failure to follow the manufacturer’s instructions.
• The product has been disassembled, modified, or repaired by non-authorized service providers.
• Damage caused by operating the product in corrosive gas environments or areas with excessive dust, without proper protection measures.

List of Warranty Centers:

• Head Office: 27B Street 12, KP2, Hiep Binh Phuoc Ward, Thu Duc City, Ho Chi Minh City 
• Hanoi Office: NV 4.7 Hai Au 2 Street, Cau Buou Urban Area, Thanh Trì District, Hanoi 
• Da Nang Office: 385B Hai Phong Street, Tan Chinh Ward, Thanh Khe District, Da Nang City 
• Da Lat Office: 38/7 Ba Thang Hai Alley, Ward 4, Da Lat City 
• Hotline: North: 0766 899 799, South: 0965 210 874, Central Highlands: 0961 061 076 - Central Vietnam: 0935 696 695
• Website: https://kosmen.com.vn/en