Related by context. Frequent words. (Click for all words.) 70 decibels 70 #db [001] 64 #dB [001] 60 dB 55 decibel 54 #dB [002] 53 watts 52 whisper quiet 52 Hz 52 ambient noise 51 noise 50 μA 50 vibration 50 kilohertz 49 decibel level 49 psi 49 amperage 49 HEPA filter 48 cfm 48 #.#W [001] 48 #RPM [002] 48 mW 47 msec 47 4W 47 amperes 47 psig 47 #mW [002] 47 hertz 47 #VDC [001] 47 milliwatts 47 ohms 47 decibel levels 47 HEPA filters 47 dBm 47 omnidirectional 47 uA 46 #.#dB [002] 46 #kHz [001] 46 #V AC [002] 46 attenuation 46 mSv 46 #mW [001] 46 1MHz 45 gpm 45 #W [001] 45 output voltage 45 lux 45 º C 44 Vdc 44 ambient temperature 44 #ms [003] 44 #dBm [002] 44 #V DC 44 inductance 44 watt 44 millirem 44 noisy environments 44 +# ° C [002] 44 #VAC [001] 44 loudness 44 #rpm [002] 44 KHz 44 #Hz [001] 44 mV 44 milliohms 44 kW 43 IEC# [001] 43 noiseless 43 ohm 43 Noise Reduction 43 #.#kW [001] 43 cd/m2 43 airflow 43 mmHg 43 1W 43 ° C 43 kHz 43 r min 43 PM# [003] 43 amps 43 mA 42 #mA [002] 42 noisier 42 rpms 42 microsieverts 42 noise vibration 42 Etymotic 42 ambient 42 intelligibility 42 2W 42 watt amplifier 42 subsonic 41 blowers 41 #V [001] 41 electromagnetic interference EMI 41 rpm 41 #kW [001] 41 Noise 41 particulate matter emissions 41 volts 41 omni directional