TerraBloom ECMF-100 (4") Inline Duct Fan With EC Motor. Sound Output at Various Speed Levels. скачать в хорошем качестве

TerraBloom ECMF-100 (4") Inline Duct Fan With EC Motor. Sound Output at Various Speed Levels.

In this video we show the noise level emitted by TerraBloom's ECMF-100 (4") fan. This fan is built with EC (DC current subtype) motor which produces no additional hum or noise at low speeds and saves you 40-60% in electricity costs. This 4" fan also produces 334 Pa max pressure, which is around 30% more than most units in this category. With many online sellers misrepresenting their product's sound outputs we find it especially important to provide proof of true noise level produced by our fans and the airflow they create. Beware that values like 30-39 dB are below the noise level of a typical suburban home, which falls in range of 40-45 dB. Such levels are not achievable with a working fan unless it is fully sound insulated with insulation rock wool or foam. When you see a claims online (especially on Amazon/eBay/Walmart marketplaces) stating a ridiculously low, sub 40 dB, noise level of fan without any video proof, consider it to be a misrepresentation. Trust your eyes and ears, trust video proof only.