<https://openbaazar.com/product/philips-innospire-replacement-filter-4-of-pack-1102088/#product>
<http://schema.org/description>
" Philips\r\nDescription:\r\n\r\n\r\n• Sold by the Pack\r\n• Quantity per Pack : 4 EA\r\n• Category : Re-Usable CPAP Filters\r\n• Product Class : CPAP"
<https://openbaazar.com/product/philips-innospire-replacement-filter-4-of-pack-1102088/>