It needs to clear the filter/silencer once every two months and pay more attention to waterproof.

We are pleased to send the samples for your evaluation.And the samples cost plus shipping freight can be returned back to you in your next bulk order.

We will inspect products according to the standard process before shipment and every compressor has test record. We will keep these records to our quality traceability system about 3-5 years.Test item...

Our warranty is 14 months. It means that if our machine has any problems within 14 months, we will send you new one or free spare parts for your replacement in your next shipment.

We have professional and experienced R & D team, so we can better serve customers to achieve high-end customization and development. We accept the ODM and OEM.

We have portable oxygen concentrator compressor, DC air compressor, oil free air compressor and vacuum pump with small, silent, low-energy design.