Yes, the products are safe for use around children and pets when used as directed. Yes, children and pets can crawl on carpets after use. However, it is recommended to first let the carpet dry thoroughly.
Any of the Wash & Protect range and the Carpet Wash can be used in all upright machines. The formula for compacts is only for use in the portable or handheld spotcleaners.
You will have a solution line on your tank or a measure cup to help with this.