Bilsom 303S vs Mack's Ultra Soft - Comparison
Comparison
The Mack's Ultra Soft is a stronger earplug than the Bilsom 303S. Please have a look at the decibel comparison chart below. More decibel means stronger sound protection.
The individual reviews of each earplug are available here:
Bilsom 303S
Mack's Ultra Soft
Facts
| Bilsom 303S | Mack's Ultra Soft | |
|---|---|---|
| Brand: | Howard Leight | Mack's |
Images
Bilsom 303S
Mack's Ultra Soft
Attenuation (US Standard)
Attenuation according to measurment standard ANSI S3.19-1974
More decibel (dB) means more sound protection. More hertz (Hz) means a higher pitch sound.
Overall rating
| Bilsom 303S | Mack's Ultra Soft | Difference | |
|---|---|---|---|
| NRR | 29.00 | 32.00 | -3.00 |
| Hz | 125 | 250 | 500 | 1000 | 2000 | 3150 | 4000 | 6300 | 8000 |
|---|---|---|---|---|---|---|---|---|---|
| Bilsom 303S: dB | 34.40 | 35.00 | 36.20 | 35.90 | 36.40 | 38.90 | 39.80 | 42.60 | 43.00 |
| Mack's Ultra Soft: dB | 35.60 | 37.70 | 41.10 | 39.50 | 38.50 | 43.50 | 44.50 | 48.10 | 47.20 |
| Difference: dB | -1.20 | -2.70 | -4.90 | -3.60 | -2.10 | -4.60 | -4.70 | -5.50 | -4.20 |
| Bilsom 303S: SD | 3.40 | 4.20 | 3.80 | 3.00 | 2.90 | 3.00 | 3.20 | 4.20 | 4.10 |
| Mack's Ultra Soft: SD | 4.90 | 4.50 | 4.40 | 3.70 | 2.70 | 2.80 | 4.00 | 4.30 | 3.70 |
| Difference: SD | -1.50 | -0.30 | -0.60 | -0.70 | 0.20 | 0.20 | -0.80 | -0.10 | 0.40 |
| Bilsom 303S: dB less SD | 31.00 | 30.80 | 32.40 | 32.90 | 33.50 | 35.90 | 36.60 | 38.40 | 38.90 |
| Mack's Ultra Soft: dB less SD | 30.70 | 33.20 | 36.70 | 35.80 | 35.80 | 40.70 | 40.50 | 43.80 | 43.50 |
| Difference: dB less SD | 0.30 | -2.40 | -4.30 | -2.90 | -2.30 | -4.80 | -3.90 | -5.40 | -4.60 |
Source Bilsom 303S: honeywellsafety.com. Instruction Manual - Bilsom 303 (global). Retrieved from http://www.honeywellsafety.com/Supplementary/Documents_and_Downloads/Hearing_Protection/Earplugs/4294986710/1033.aspx on 2016-08-01
Source Mack's Ultra Soft: macksearplugs.com. Noise Reduction Info - Mack's Ultra Soft. Retrieved from http://www.macksearplugs.com/noise-reduction-info/sleeping-earplugs/safe-sound-ultra-soft-foam-earplugs on 2016-12-18