Amazon LEVOIT  
LEVOIT Air Purifier for Home Allergies and Pets Hair Smokers in Bedroom H13 True HEPA Filter, 24db Filtration System Cleaner Odor Eliminators, Remove 99.97% Dust Smoke Mold Pollen, White, 2 Pack
OZONE FREE: Levoit air purifiers avoid using UV-C light, an air cleaning method that research has shown can produce harmful ozone and secondary pollution
HIGH PERFORMANCE: Enjoy fresh air in minutes with the Core 300 True HEPA Air Purifier. Featuring VortexAir Technology and 360° air intake, the Core 300 cleans spaces up to 547 ft² in 30 minutes, 219 ft² in 12 minutes (CADR: 141 CFM / 240 m³/h). Only products over 6 pounds can be equipped with such powerful motors that optimize the air cleaning performance
FIND RELIF: Ease sneezing, congestion, and other allergy symptoms caused by airborne contaminants. The H13 True HEPA Filter works alongside the Pre-Filter and High-Efficiency Activated Carbon Filter to capture 99.97% of airborne particles 0.3 microns in size, such as dust, smoke, pollen, odor
MULTIPLE FILTER CHOICES: Choose from a variety of replacement filters to best meet your needs. The Toxin Absorber Filter specializes in smog, toxins and VOCs. The Smoke Remover filter specializes in wildfire, smoke and etc. And the Pet Allergy Filter helps to capture pet dander and absorb unpleasant odors
MOST SILENT AIR CLEANER: Choose Sleep Mode at night and then forget all about your air purifier while you sleep. QuietKEAP Technology reduces noise levels to a near-silent 24dB, ensuring the Core 300 won’t get in the way of a good night’s rest
SLEEK DESIGN: The Core 300 practically serves your home while blending in with your decor. Its award-winning design (Red Dot, 2020) and modern white finish help your air purifier fit anywhere in your home/bedroom/room
UNDISTURBED OPERATION: Display light can be turned off to enjoy a perfect night of sleep without the effect of light. A timer for 2/4/6/8 hours and filter life time indicator for your convenience
FULL CERTIFIED FOR SAFER: Energy S
LEVOIT Air Purifier for Home Allergies and Pets Hair Smokers in Bedroom H13 True
Amazon GermGuardian  
GermGuardian Air Purifier for Homes with Pets, H13 Pet HEPA Filter, Removes Pet Dander, Dust, Allergens, Smoke, Pollen, Odors, Mold, UV-C Light Helps Reduce Germs, 22 Inch, Black, AC4300BPTCA
HIGH PERFORMANCE AIR PURIFIER: Circulates the air 1x per hour in 743 square foot rooms and 4.8x per hour in 153 sq. ft rooms, ensuring thorough purification. Ideal for medium to large sized rooms such as: dorm rooms, bedrooms, and other living areas.
GENUINE HEPA PET PURE FILTER: Our Pet Pure HEPA Filter is designed to tackle pet dander, hair, and odors with exceptional efficiency, capturing up to 99.97% of harmful germs, dust, pollen, mold spores, and other allergens as small as .1 micron.
FIGHTS GERMS: Equipped with UV-C light technology, this air purifier helps reduce airborne viruses, such as influenza, staph, and rhinovirus, while also targeting volatile organic compounds (VOCs)
TRAPS ALLERGENS: Pre-filter traps dust, pet hair, and other large particles while extending the life of the HEPA filter
REDUCES ODORS: Activated charcoal filter helps to reduce unwanted odors from pets, smoke, cooking fumes, and more
ZERO OZONE CERTIFIED: Our air purifier is Ultraviolet - C (UV-C) enabled, providing an extra layer of defense, helping to reduce airborne germs such as Staphylococcus Albus, Escherichia Coli, Aspergillus Niger, and Phi-X174 as well as airborne bacteria and mold spores*
QUIET OPERATION: The lowest setting can be used as gentle white noise at night for a quiet, restful sleep
GermGuardian Air Purifier for Homes with Pets, H13 Pet HEPA Filter, Removes Pet
Amazon Shure  
Shure SM81-LC Cardioid Condenser Instrument Microphone for Guitar, Piano, and Cymbals, Includes Swivel Adapter, Attenuator-Switch Lock, Windscreen, Carrying Case, No Cable Included (SM81-LC)
This microphone requires phantom power and performs best with a 48 Vdc supply (IEC-61938). However, it will operate with slightly decreased headroom and sensitivity with supplies as low as 11 Vdc. Most modern mixers provide phantom power. You must use a balanced microphone cable: XLR-to-XLR or XLR-to-TRS.
The SM81 is ruggedly constructed. It operates on phantom power and performs over a wide range of temperatures and humidity conditions. It is furnished with a swivel adapter, attenuator-switch lock, foam windscreen, and case for carrying and storage. Other accessories are available.
20 Hz to 20 kHz frequency response. Flat response curve for accurate reproduction of sound sources.
Low noise and high output clipping level. Low distortion over a wide range of load impedances.
Cardioid polar pattern, uniform with frequency and symmetric about axis, providing maximum rejection and minimum coloration of off-axis sounds
Low RF susceptibility
Selectable low-frequency response: flat, 6 or 18 dB/octave rolloff
0 dB/10 dB lockable attenuator switch
Rugged steel construction for durability. Field-usable over wide range of temperature and humidity conditions.
Cardioid condenser instrument microphone offers a wide frequency response and low self-noise. Features include flat response curve, low noise and high output clipping level, low distortion over a range of load impedances, and low RF susceptibility.
Shure SM81-LC Cardioid Condenser Instrument Microphone for Guitar, Piano, and Cy
Amazon GermGuardian  
GermGuardian Air Purifier for Homes with Pets, H13 Pet HEPA Filter, Removes Pet Dander, Dust, Allergens, Smoke, Pollen, Odors, Mold, UV-C Light Helps Reduce Germs, 22 Inch, White, AC4300WPT
HIGH PERFORMANCE AIR PURIFIER: Circulates the air 1x per hour in 743 square foot rooms and 4.8x per hour in 153 sq. ft rooms, ensuring thorough purification. Ideal for medium to large sized rooms such as: dorm rooms, bedrooms, and other living areas!
GENUINE HEPA PET PURE FILTER: Our Pet Pure HEPA Filter is designed to tackle pet dander, hair, and odors with exceptional efficiency, capturing up to 99.97% of harmful germs, dust, pollen, mold spores, and other allergens as small as .1 micron.
FIGHTS GERMS: Equipped with UV-C light technology, this air purifier helps reduce airborne viruses, such as influenza, staph, and rhinovirus, while also targeting volatile organic compounds (VOCs)
TRAPS ALLERGENS: Pre-filter traps dust, pet hair, and other large particles while extending the life of the HEPA filter
REDUCES ODORS: Activated charcoal filter helps to reduce unwanted odors from pets, smoke, cooking fumes, and more
ZERO OZONE CERTIFIED: Our air purifier is Ultraviolet - C (UV-C) enabled, providing an extra layer of defense, helping to reduce airborne germs such as Staphylococcus Albus, Escherichia Coli, Aspergillus Niger, and Phi-X174 as well as airborne bacteria and mold spores*
QUIET OPERATION: The lowest setting can be used as gentle white noise at night for a quiet, restful sleep
GermGuardian Air Purifier for Homes with Pets, H13 Pet HEPA Filter, Removes Pet
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