@sri_srikrishna That picture also shows powered air exchange through windows, not just the ACH from the HEPA.
@sri_srikrishna 这张照片还显示了通过窗户进行的动力空气交换，而不仅仅是来自 HEPA 的 ACH。
@sri_srikrishna That picture also shows powered air exchange through windows, not just the ACH from the HEPA.
@sri_srikrishna 这张照片还显示了通过窗户进行的动力空气交换，而不仅仅是来自 HEPA 的 ACH。