Product Details Rechargeable Smokeless Ashtray Smart Home Purifier, Suitable for Any Occasion, Portable USB Description This product combines the functions of an aromatherapy machine, a smokeless ashtray and a portable cigarette smoke collector, and can also be used as a negative ion generator for home and office. Function: Designed for smoke and dust removal. Product color: black Material: Combination of ceramic and ABS Power supply: USB power supply Battery capacity: 4000mAh Rated voltage: 5V 2A Rated power: 3W - 5W Control method: button operation Noise level: 25 - 33dB Applicable places: Indoor use Filter type: Composite filtration Applicable area: Applicable to 10 - 25 area Working principle: using negative ions Negative ion concentration: 15 million/cm Product size: 16.516.510.3cm or 6.5"*6.5"*4" Applicable scenarios: can be used in home, office, business negotiation, driving, KTV, hotel, Internet cafe, chess and card room and other occasions. It is also a great gift. Product advantages Health protection: harmful substances released by cigarettes include carbon monoxide, nicotine, acetone, acetaldehyde, ammonia and other harmful substances, quickly purify the air, the maximum range Reduce the harm of smoke to the human body. Turbo fan upgrade: The wind speed of the turbo fan is increased by 20%, achieving multi-directional air purification. Quadruple filtration: Effectively remove indoor odors, formaldehyde, and allergens. Aromatherapy function: Essential oils or sesame oil can be added to the filter to create a relaxing and pleasant environment. Smart settings: The remaining power can be clearly observed, the purification time and wind speed can be adjusted, and the operation is simple and convenient. Low noise: The noise is as low as 30 decibels, allowing you to sleep peacefully in a healthy and fresh air environment. Three-speed mode adjustment: Purification is more stable. Package Contents 2 * Replacement filter 1 * Power cord 1 * User manual Packaging details Packaging size: 19 * 19 * 13cm or 7.5"*7.5"*5.1" Packaging weight: 1.3kg or 2.9lb